CVE-2007-1558

The APOP protocol allows remote attackers to guess the first 3 characters of a password via man...

2.6 LowFix available

The APOP protocol allows remote attackers to guess the first 3 characters of a password via man-in-the-middle (MITM) attacks that use crafted message IDs and MD5 collisions. NOTE: this design-level issue potentially affects all products that use APOP, including (1) Thunderbird 1.x before 1.5.0.12 and 2.x before 2.0.0.4, (2) Evolution, (3) mutt, (4) fetchmail before 6.3.8, (5) SeaMonkey 1.0.x before 1.0.9 and 1.1.x before 1.1.2, (6) Balsa 2.3.16 and earlier, (7) Mailfilter before 0.8.2, and possibly other products.

Exploit likelihood

2.42%Down 6.7 points since Feb 4, 2022

What each source reports

NVD Score used 2.6

Record: CVE-2007-1558
CVSS 2.0: 2.6 LowAV:N/AC:H/Au:N/C:P/I:N/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2007-1558
Updated: 2026-11-02

EUVDEUVD-2007-1552 No score

Record: EUVD-2007-1552
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jmh6-7c53-fg26 No score

The APOP protocol allows remote attackers to guess the first 3 characters of a password via man...

Record: GHSA-jmh6-7c53-fg26
Updated: 2026-11-02

OSV No score

Record: CVE-2007-1558
Updated: 2026-11-02

OSVDEBIAN-CVE-2007-1558 No score

Record: DEBIAN-CVE-2007-1558
Updated: 2026-11-02

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OSVopenSUSE-SU-2024:10686-1 No score

claws-mail-4.0.0-2.5 on GA media

These are all security issues fixed in the claws-mail-4.0.0-2.5 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10686-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10753-1 No score

fetchmail-6.4.21-2.1 on GA media

These are all security issues fixed in the fetchmail-6.4.21-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10753-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:11069-1 No score

mutt-2.0.7-2.2 on GA media

These are all security issues fixed in the mutt-2.0.7-2.2 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:11069-1
Updated: 2026-11-02

OSVopenSUSE-SU-2024:11615-1 No score

mpop-1.4.14-1.1 on GA media

These are all security issues fixed in the mpop-1.4.14-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:11615-1
Updated: 2026-11-02

Affected products

apop protocol protocol

Affected packages

Affected packages
Package	Affected	Fixed
`balsa` Debian:12	before 2.3.17-1	2.3.17-1
`balsa` Debian:13	before 2.3.17-1	2.3.17-1
`balsa` Debian:14	before 2.3.17-1	2.3.17-1
`claws-mail` Debian:12	before 2.9.1-1	2.9.1-1
`claws-mail` Debian:13	before 2.9.1-1	2.9.1-1
`claws-mail` Debian:14	before 2.9.1-1	2.9.1-1
`fetchmail` Debian:12	before 6.3.8-1	6.3.8-1
`fetchmail` Debian:13	before 6.3.8-1	6.3.8-1
`fetchmail` Debian:14	before 6.3.8-1	6.3.8-1
`mailfilter` Debian:12	before 0.8.2-1	0.8.2-1

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Affected packages
Package	Affected	Fixed
`mailfilter` Debian:13	before 0.8.2-1	0.8.2-1
`mailfilter` Debian:14	before 0.8.2-1	0.8.2-1
`mutt` Debian:12	before 1.5.18-6	1.5.18-6
`mutt` Debian:13	before 1.5.18-6	1.5.18-6
`mutt` Debian:14	before 1.5.18-6	1.5.18-6
`iceape` Debian:4.0	before 1.0.9-0etch1, plus listed versions 1.0.8-4	1.0.9-0etch1
`icedove` Debian:4.0	before 1.5.0.12.dfsg1-0etch1, plus listed versions 1.5.0.10.dfsg1-3	1.5.0.12.dfsg1-0etch1
`icedove` Debian:5.0	before 1.5.0.12.dfsg1-0etch1+lenny1	1.5.0.12.dfsg1-0etch1+lenny1
`iceape` Debian:5.0	before 1.0.10~pre070720-0etch1+lenny1	1.0.10~pre070720-0etch1+lenny1
`evolution-data-server` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server-debuginfo` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server-devel` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server` Red Hat:enterprise_linux:5::client	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server-debuginfo` Red Hat:enterprise_linux:5::client	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server` Red Hat:enterprise_linux:5::server	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server-debuginfo` Red Hat:enterprise_linux:5::server	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution-data-server-devel` Red Hat:enterprise_linux:5::server	before 0:1.8.0-15.0.3.el5	0:1.8.0-15.0.3.el5
`evolution` Red Hat:enterprise_linux:3::as	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-debuginfo` Red Hat:enterprise_linux:3::as	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-devel` Red Hat:enterprise_linux:3::as	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution` Red Hat:enterprise_linux:3::desktop	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-debuginfo` Red Hat:enterprise_linux:3::desktop	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution` Red Hat:enterprise_linux:3::es	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-debuginfo` Red Hat:enterprise_linux:3::es	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-devel` Red Hat:enterprise_linux:3::es	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution` Red Hat:enterprise_linux:3::ws	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-debuginfo` Red Hat:enterprise_linux:3::ws	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution-devel` Red Hat:enterprise_linux:3::ws	before 0:1.4.5-20.el3	0:1.4.5-20.el3
`evolution` Red Hat:enterprise_linux:4::as	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-debuginfo` Red Hat:enterprise_linux:4::as	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-devel` Red Hat:enterprise_linux:4::as	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-devel` Red Hat:enterprise_linux:4::desktop	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution` Red Hat:enterprise_linux:4::es	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-debuginfo` Red Hat:enterprise_linux:4::es	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-devel` Red Hat:enterprise_linux:4::es	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`evolution-devel` Red Hat:enterprise_linux:4::ws	before 0:2.0.2-35.0.2.el4	0:2.0.2-35.0.2.el4
`fetchmail` Red Hat:enterprise_linux:2.1::as	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmailconf` Red Hat:enterprise_linux:2.1::as	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmail` Red Hat:enterprise_linux:2.1::aw	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmailconf` Red Hat:enterprise_linux:2.1::aw	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmail` Red Hat:enterprise_linux:2.1::es	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmailconf` Red Hat:enterprise_linux:2.1::es	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmail` Red Hat:enterprise_linux:2.1::ws	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmailconf` Red Hat:enterprise_linux:2.1::ws	before 0:5.9.0-21.7.3.el2.1.6	0:5.9.0-21.7.3.el2.1.6
`fetchmail` Red Hat:enterprise_linux:3::as	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail-debuginfo` Red Hat:enterprise_linux:3::as	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail` Red Hat:enterprise_linux:3::desktop	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail-debuginfo` Red Hat:enterprise_linux:3::desktop	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail` Red Hat:enterprise_linux:3::es	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail-debuginfo` Red Hat:enterprise_linux:3::es	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail` Red Hat:enterprise_linux:3::ws	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail-debuginfo` Red Hat:enterprise_linux:3::ws	before 0:6.2.0-3.el3.4	0:6.2.0-3.el3.4
`fetchmail` Red Hat:enterprise_linux:4::as	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail-debuginfo` Red Hat:enterprise_linux:4::as	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail` Red Hat:enterprise_linux:4::desktop	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail` Red Hat:enterprise_linux:4::es	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail-debuginfo` Red Hat:enterprise_linux:4::es	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail` Red Hat:enterprise_linux:4::ws	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:6.2.5-6.0.1.el4	0:6.2.5-6.0.1.el4
`fetchmail` Red Hat:enterprise_linux:5::client_workstation	before 0:6.3.6-1.0.1.el5	0:6.3.6-1.0.1.el5
`fetchmail-debuginfo` Red Hat:enterprise_linux:5::client_workstation	before 0:6.3.6-1.0.1.el5	0:6.3.6-1.0.1.el5
`fetchmail` Red Hat:enterprise_linux:5::server	before 0:6.3.6-1.0.1.el5	0:6.3.6-1.0.1.el5
`fetchmail-debuginfo` Red Hat:enterprise_linux:5::server	before 0:6.3.6-1.0.1.el5	0:6.3.6-1.0.1.el5
`mutt` Red Hat:enterprise_linux:3::as	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt-debuginfo` Red Hat:enterprise_linux:3::as	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt` Red Hat:enterprise_linux:3::desktop	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt-debuginfo` Red Hat:enterprise_linux:3::desktop	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt` Red Hat:enterprise_linux:3::es	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt-debuginfo` Red Hat:enterprise_linux:3::es	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt` Red Hat:enterprise_linux:3::ws	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt-debuginfo` Red Hat:enterprise_linux:3::ws	before 5:1.4.1-5.el3	5:1.4.1-5.el3
`mutt` Red Hat:enterprise_linux:4::as	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt-debuginfo` Red Hat:enterprise_linux:4::as	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt` Red Hat:enterprise_linux:4::desktop	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt-debuginfo` Red Hat:enterprise_linux:4::desktop	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt` Red Hat:enterprise_linux:4::es	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt-debuginfo` Red Hat:enterprise_linux:4::es	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt` Red Hat:enterprise_linux:4::ws	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt-debuginfo` Red Hat:enterprise_linux:4::ws	before 5:1.4.1-12.0.3.el4	5:1.4.1-12.0.3.el4
`mutt` Red Hat:enterprise_linux:5::client	before 5:1.4.2.2-3.0.2.el5	5:1.4.2.2-3.0.2.el5
`mutt-debuginfo` Red Hat:enterprise_linux:5::client	before 5:1.4.2.2-3.0.2.el5	5:1.4.2.2-3.0.2.el5
`mutt` Red Hat:enterprise_linux:5::server	before 5:1.4.2.2-3.0.2.el5	5:1.4.2.2-3.0.2.el5
`mutt-debuginfo` Red Hat:enterprise_linux:5::server	before 5:1.4.2.2-3.0.2.el5	5:1.4.2.2-3.0.2.el5
`thunderbird` Red Hat:enterprise_linux:4::as	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::as	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird` Red Hat:enterprise_linux:4::desktop	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird` Red Hat:enterprise_linux:4::es	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::es	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird` Red Hat:enterprise_linux:4::ws	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:1.5.0.12-0.1.el4	0:1.5.0.12-0.1.el4
`thunderbird` Red Hat:enterprise_linux:5::client	before 0:1.5.0.12-1.el5	0:1.5.0.12-1.el5
`thunderbird-debuginfo` Red Hat:enterprise_linux:5::client	before 0:1.5.0.12-1.el5	0:1.5.0.12-1.el5
`thunderbird` Red Hat:rhel_productivity:5	before 0:1.5.0.12-1.el5	0:1.5.0.12-1.el5
`thunderbird-debuginfo` Red Hat:rhel_productivity:5	before 0:1.5.0.12-1.el5	0:1.5.0.12-1.el5
`seamonkey` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-chat` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-devel` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-dom-inspector` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-js-debugger` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-mail` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr-devel` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss-devel` Red Hat:enterprise_linux:2.1::as	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-chat` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-devel` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-dom-inspector` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-js-debugger` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-mail` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr-devel` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss-devel` Red Hat:enterprise_linux:2.1::aw	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-chat` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-devel` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-dom-inspector` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-js-debugger` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-mail` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr-devel` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss-devel` Red Hat:enterprise_linux:2.1::es	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-chat` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-devel` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-dom-inspector` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-js-debugger` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-mail` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nspr-devel` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey-nss-devel` Red Hat:enterprise_linux:2.1::ws	before 0:1.0.9-0.1.el2	0:1.0.9-0.1.el2
`seamonkey` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::as	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::desktop	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::es	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-chat` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-debuginfo` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-dom-inspector` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-js-debugger` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-mail` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nspr-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`seamonkey-nss-devel` Red Hat:enterprise_linux:3::ws	before 0:1.0.9-0.1.el3	0:1.0.9-0.1.el3
`devhelp` Red Hat:enterprise_linux:4::as	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-debuginfo` Red Hat:enterprise_linux:4::as	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-devel` Red Hat:enterprise_linux:4::as	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`seamonkey` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-chat` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-devel` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-mail` Red Hat:enterprise_linux:4::as	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`devhelp` Red Hat:enterprise_linux:4::desktop	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-devel` Red Hat:enterprise_linux:4::desktop	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`seamonkey` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-chat` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-devel` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-mail` Red Hat:enterprise_linux:4::desktop	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`devhelp` Red Hat:enterprise_linux:4::es	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-debuginfo` Red Hat:enterprise_linux:4::es	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-devel` Red Hat:enterprise_linux:4::es	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`seamonkey` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-chat` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-devel` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-mail` Red Hat:enterprise_linux:4::es	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`devhelp` Red Hat:enterprise_linux:4::ws	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`devhelp-devel` Red Hat:enterprise_linux:4::ws	before 0:0.10-0.8.el4	0:0.10-0.8.el4
`seamonkey` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-chat` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-devel` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-dom-inspector` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-js-debugger` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`seamonkey-mail` Red Hat:enterprise_linux:4::ws	before 0:1.0.9-2.el4	0:1.0.9-2.el4
`irb` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-debuginfo` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-devel` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-docs` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-libs` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-mode` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-tcltk` Red Hat:enterprise_linux:4::as	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`irb` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-debuginfo` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-devel` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-docs` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-libs` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-mode` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-tcltk` Red Hat:enterprise_linux:4::desktop	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`irb` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-debuginfo` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-devel` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-docs` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-libs` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-mode` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-tcltk` Red Hat:enterprise_linux:4::es	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`irb` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-debuginfo` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-devel` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-docs` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-libs` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-mode` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby-tcltk` Red Hat:enterprise_linux:4::ws	before 0:1.8.1-7.el4_8.3	0:1.8.1-7.el4_8.3
`ruby` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-debuginfo` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-devel` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-mode` Red Hat:enterprise_linux:5::client_workstation	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-debuginfo` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-docs` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-irb` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-libs` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-rdoc` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-ri` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-tcltk` Red Hat:enterprise_linux:5::client	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-debuginfo` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-devel` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-docs` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-irb` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-libs` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-mode` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-rdoc` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-ri` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`ruby-tcltk` Red Hat:enterprise_linux:5::server	before 0:1.8.5-5.el5_3.7	0:1.8.5-5.el5_3.7
`claws-mail` openSUSE:Tumbleweed	before 4.0.0-2.5	4.0.0-2.5
`fetchmail` openSUSE:Tumbleweed	before 6.4.21-2.1	6.4.21-2.1
`mutt` openSUSE:Tumbleweed	before 2.0.7-2.2	2.0.7-2.2
`mpop` openSUSE:Tumbleweed	before 1.4.14-1.1	1.4.14-1.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	aliases
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-1558 is a low vulnerability (CVSS 2.6) in Apop Protocol Protocol, published April 16, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.42%, the 84th percentile. Fixed in balsa 2.3.17-1.

References

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