CVE-2025-0510: mozilla thunderbird
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-0510DEBIAN-CVE-2025-0510
Published 04-02-2025Last modified 13-04-2026
Vulnerability summary
CVE-2025-0510 is a medium (CVSS 6.5) vulnerability in mozilla thunderbird. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 19.7% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.29%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 15 · Related 3Timeline
- 04-02-2025PublishedVulnerability first disclosed.
- 13-04-2026Last modifiedVulnerability information updated.
Description
Thunderbird displayed an incorrect sender address if the From field of an email used the invalid group name syntax that is described in CVE-2024-49040. This vulnerability was fixed in Thunderbird 128.7 and Thunderbird 135.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
+0.05 pp
From 0.24% on 20-09-2026
20-09-202620-10-2026
EPSS score0.29%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- thunderbird< 1:128.7.0esr-1~deb12u1 | < 1:128.7.0esr-1
Mozilla1 product
- thunderbird≥ 128.0.1, < 128.7.0 | ≥ 131.0, < 135.0
Ubuntu1 product
- thunderbird< 1:128.12.0+build1-0ubuntu0.22.04.1
3 vendors · 3 products
