CVE-2017-16804

In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb...

4.3 MediumFix available

In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb does not check whether an issue is visible, which allows remote authenticated users to obtain sensitive information by reading e-mail reminder messages.

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: Low
Integrity: None
Availability: None

Exploit likelihood

1.63%Up 0.3 points since Apr 14, 2021

What each source reports

NVD Score used 4.3

Record: CVE-2017-16804
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 4.0 MediumAV:N/AC:L/Au:S/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2017-16804
Updated: 2026-11-02

EUVDEUVD-2017-7980 No score

Record: EUVD-2017-7980
Updated: 2026-11-03

GitHub AdvisoriesGHSA-c2rv-c7wr-4chh 4.3

In Redmine before 3.2.7 and 3.3.x before 3.3.4, the reminders function in app/models/mailer.rb...

Record: GHSA-c2rv-c7wr-4chh
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

OSV 4.3

Record: CVE-2017-16804
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2017-16804 4.3

Record: DEBIAN-CVE-2017-16804
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2017-16804 4.3

Record: UBUNTU-CVE-2017-16804
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`redmine` Debian:12	before 3.4.2-1	3.4.2-1
`redmine` Debian:13	before 3.4.2-1	3.4.2-1
`redmine` Debian:14	before 3.4.2-1	3.4.2-1
`redmine` Debian:9	before 3.3.1-4+deb9u1, plus listed versions 3.3.1-4	3.3.1-4+deb9u1
`redmine` Ubuntu:16.04:LTS	All versions, plus listed versions 3.0~20140825-83.2.0-13.2.0-33.2.1-13.2.1-23.2.1-2ubuntu0.2	None known

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-2017-16804 is a medium vulnerability (CVSS 4.3) in Redmine, published November 13, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.63%, the 76th percentile. Fixed in redmine 3.4.2-1.