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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2026-8956

Integer overflow in the Networking: JAR component

Description

Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mozilla Firefox

  • 140.11 to ≤ 140.*unaffected
  • 151 to ≤ *unaffected

Mozilla Thunderbird

  • 140.11 to ≤ 140.*unaffected
  • 151 to ≤ *unaffected

References