CVE-2026-12326

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-12326
Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.

7.3 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1767455%2C2004308%2C2024445%2C2028182%2C2029765%2C2029883%2C2030110%2C2030149%2C2030366%2C2030374%2C2030564%2C2031120%2C2033411%2C2038695%2C2042465%2C2042781%2C2042907
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2021955%2C2025960%2C2029066%2C2029403%2C2029435%2C2029803%2C2030570%2C2030573%2C2032264%2C2033234%2C2034816%2C2035907%2C2035963%2C2036895%2C2036898%2C2036907%2C2036909%2C2036928%2C2036931%2C2036932%2C2036934%2C2039238%2C2039463
https://bugzilla.mozilla.org/buglist.cgi?bug_id=2039050%2C2042718%2C2042760%2C2044831%2C2045307%2C2045398%2C2045516%2C2045572%2C2041741%2C2044433
https://www.mozilla.org/security/advisories/mfsa2026-57/
https://www.mozilla.org/security/advisories/mfsa2026-60/
Configurations

No configuration.

History

16 Jun 2026, 17:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.3
CWE CWE-119
References
  • () https://www.mozilla.org/security/advisories/mfsa2026-60/ -
Summary (en) Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152. (en) Memory safety bugs present in Firefox 151 and Thunderbird 151. 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 152 and Thunderbird 152.

16 Jun 2026, 13:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-06-16 13:16

Updated : 2026-06-16 17:16

NVD link : CVE-2026-12326

Mitre link : CVE-2026-12326

CVE.ORG link : CVE-2026-12326

JSON object : View

Products Affected

No product.

CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer