CVE - CVE-2025-4087

CVE-ID
CVE-2025-4087	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
A vulnerability was identified in Firefox where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird ESR < 128.10.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://bugzilla.mozilla.org/show_bug.cgi?id=1952465 URL:https://bugzilla.mozilla.org/show_bug.cgi?id=1952465 MISC:https://www.mozilla.org/security/advisories/mfsa2025-28/ URL:https://www.mozilla.org/security/advisories/mfsa2025-28/ MISC:https://www.mozilla.org/security/advisories/mfsa2025-29/ URL:https://www.mozilla.org/security/advisories/mfsa2025-29/ MISC:https://www.mozilla.org/security/advisories/mfsa2025-31/ URL:https://www.mozilla.org/security/advisories/mfsa2025-31/ MISC:https://www.mozilla.org/security/advisories/mfsa2025-32/ URL:https://www.mozilla.org/security/advisories/mfsa2025-32/
Assigning CNA
Mozilla Corporation
Date Record Created
20250429	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250429)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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