CVE-2025-8040

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-8040
Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1.
CVSS

No CVSS.

References
Link Resource
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975998
https://www.mozilla.org/security/advisories/mfsa2025-56/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-59/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-61/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2025-63/ Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
History

30 Jul 2025, 17:15

Type Values Removed Values Added
References
  • {'url': 'https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975058%2C1975998%2C1975998', 'name': 'Memory safety bugs fixed in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141', 'tags': ['Broken Link'], 'refsource': ''}
  • () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975998 -

28 Jul 2025, 14:00

Type Values Removed Values Added
CPE cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*
First Time Mozilla thunderbird
Mozilla
Mozilla firefox
References () https://www.mozilla.org/security/advisories/mfsa2025-61/ - () https://www.mozilla.org/security/advisories/mfsa2025-61/ - Vendor Advisory
References () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975058%2C1975998%2C1975998 - () https://bugzilla.mozilla.org/buglist.cgi?bug_id=1975058%2C1975058%2C1975998%2C1975998 - Broken Link
References () https://www.mozilla.org/security/advisories/mfsa2025-59/ - () https://www.mozilla.org/security/advisories/mfsa2025-59/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-56/ - () https://www.mozilla.org/security/advisories/mfsa2025-56/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2025-63/ - () https://www.mozilla.org/security/advisories/mfsa2025-63/ - Vendor Advisory

22 Jul 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-22 21:15

Updated : 2025-07-30 17:15

NVD link : CVE-2025-8040

Mitre link : CVE-2025-8040

JSON object : View

Products Affected

mozilla

  • firefox
  • thunderbird
CWE

No CWE.