CVE-2025-5268 (GCVE-0-2025-5268)

Vulnerability from cvelistv5 – Published: 2025-05-27 12:29 – Updated: 2026-04-13 14:29
VLAI
Title
Memory safety bugs fixed in Firefox 139, Thunderbird 139, Firefox ESR 128.11, and Thunderbird 128.11
Summary
Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10. 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 139, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-05-28 03:55 UTC
CWE
  • CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
mozilla CNA under the mitre root
CNA scorecard E 38/100 over 679 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Mozilla Firefox Unaffected: 128.11 , ≤ 128.* (rpm)
Unaffected: 139 , ≤ * (rpm)
guessed Create a notification for this product.
Mozilla Thunderbird Unaffected: 128.11 , ≤ 128.* (rpm)
Unaffected: 139 , ≤ * (rpm)
guessed Create a notification for this product.
Credits
the Mozilla Fuzzing Team, Masayuki Nakano
Show details on NVD website
To clipboard 

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