by Kastro
Paper/Archive/CVE-2025-8044

CVE-2025-8044

Mozilla Firefox — Memory safety bugs fixed in Firefox 141 and Thunderbird 141

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 41.3.413 × 208.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Memory safety bugs present in Firefox 140 and Thunderbird 140. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 141 and Thunderbird 141.

Affected

ProductAffectedFixed inSource
Firefoxsee advisory141CNA
Thunderbirdsee advisory141CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refbugzilla.mozilla.org/buglist.cgi?bug_id=1933572%2C1971116refmozilla.org/security/advisories/mfsa2025-56refmozilla.org/security/advisories/mfsa2025-61