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CVE-2026-12317

7.5 HIGH

Memory safety bug fixed in Thunderbird 152

Published: 2026-06-16 · Last updated: 2026-06-16

Severity and scoring

CVSS
7.5 HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-119

Description

Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Source: NVD

References

Related CVEs

Same CWE

  • CVE-2026-12330 — Incorrect boundary conditions in the Internationalization component (5.4 MEDIUM)
  • CVE-2026-12329 — Memory safety bug fixed in Thunderbird ESR 140.12 (5.3 MEDIUM)
  • CVE-2026-12327 — Memory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbird 151 (7.3 HIGH)
  • CVE-2026-12326 — Memory safety bugs present in Firefox 151 and Thunderbird 151 (7.3 HIGH)
  • CVE-2026-12318 — Incorrect boundary conditions in the Libraries component in NSS (7.3 HIGH)