CVE-2023-50761: debian debian_linux
Vulnerability summary
CVE-2023-50761 is a medium (CVSS 4.3) vulnerability in debian debian_linux. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 15 · Related 3Timeline
- 19-12-2023PublishedVulnerability first disclosed.
- 13-02-2025Last modifiedVulnerability information updated.
Description
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.63% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Debian2 products
- thunderbird< 1:115.6.0-1~deb12u1 | < 1:115.6.0-1
- debian_linuxEOL11.0 | 12.0
Mozilla1 product
- thunderbird≥ unspecified, < 115.6 | < 115.6
Ubuntu1 product
- thunderbird< 1:115.6.0+build2-0ubuntu0.20.04.1 | < 1:115.6.0+build2-0ubuntu0.22.04.1
3 vendors · 4 products
References
9 links
www.debian.org/security/2023/dsa-5582Third Party Advisory