CVE-2025-14333

Summary

Memory safety bugs present in Firefox ESR 140.5, Thunderbird ESR 140.5, Firefox 145 and Thunderbird 145. 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 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

Affected Software

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://bugzilla.mozilla.org/buglist.cgi?bug_id=1966501%2C1997639
• https://www.mozilla.org/security/advisories/mfsa2025-92/
• https://www.mozilla.org/security/advisories/mfsa2025-94/
• https://www.mozilla.org/security/advisories/mfsa2025-95/
• https://www.mozilla.org/security/advisories/mfsa2025-96/

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