CVE-2010-1637

The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to...

6.5 MediumFix available

The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to bypass firewall restrictions and use SquirrelMail as a proxy to scan internal networks via a modified POP3 port number.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

2.68%Up 0.1 points since Feb 4, 2022

What each source reports

NVD Score used 6.5

Record: CVE-2010-1637
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 4.0 MediumAV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

CVE List No score

Record: CVE-2010-1637
Updated: 2026-11-02

EUVDEUVD-2010-1658 No score

Record: EUVD-2010-1658
Updated: 2026-11-03

GitHub AdvisoriesGHSA-79mr-p6x2-hw9g 6.5

The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to...

Record: GHSA-79mr-p6x2-hw9g
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-918
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`squirrelmail` Red Hat:enterprise_linux:4::as	before 0:1.4.8-18.el4	0:1.4.8-18.el4
`squirrelmail` Red Hat:enterprise_linux:4::desktop	before 0:1.4.8-18.el4	0:1.4.8-18.el4
`squirrelmail` Red Hat:enterprise_linux:4::es	before 0:1.4.8-18.el4	0:1.4.8-18.el4
`squirrelmail` Red Hat:enterprise_linux:4::ws	before 0:1.4.8-18.el4	0:1.4.8-18.el4
`squirrelmail` Red Hat:enterprise_linux:5::client_workstation	before 0:1.4.8-5.el5_7.13	0:1.4.8-5.el5_7.13
`squirrelmail` Red Hat:enterprise_linux:5::server	before 0:1.4.8-5.el5_7.13	0:1.4.8-5.el5_7.13

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
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-2010-1637 is a medium vulnerability (CVSS 6.5) in Squirrelmail, published June 22, 2010. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.68%, the 85th percentile. Fixed in squirrelmail 0:1.4.8-18.el4.

References

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