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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-6785

Memory safety bugs fixed in Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird ESR 140.10, Firefox 150 and Thunderbird 150

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Status
Published
Published
Updated
Assigning organization
mozilla

Description

Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Affected products

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

Mozilla Firefox

  • 115.35 to ≤ 115.*unaffected
  • 140.10 to ≤ 140.*unaffected
  • 150 to ≤ *unaffected

Mozilla Thunderbird

  • 140.10 to ≤ 140.*unaffected
  • 150 to ≤ *unaffected

References