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CVE-2025-1010

Date: February 4, 2025

An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. This vulnerability affects Firefox < 135, Firefox ESR < 115.20, Firefox ESR < 128.7, Thunderbird < 128.7, and Thunderbird < 135.

Severity Score

Related Resources (8)

https://nvd.nist.gov/vuln/detail/CVE-2025-1010
https://www.mozilla.org/security/advisories/mfsa2025-08/
https://www.mozilla.org/security/advisories/mfsa2025-07/
https://www.mozilla.org/security/advisories/mfsa2025-09/
https://bugzilla.mozilla.org/show_bug.cgi?id=1936982
https://www.mozilla.org/security/advisories/mfsa2025-11/
https://www.mozilla.org/security/advisories/mfsa2025-10/
https://www.mend.io/vulnerability-database/CVE-2025-1010

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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