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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.
Reserved 2025-02-04 | Published 2025-02-04 | Updated 2025-02-05 | Assigner mozillaUse-after-free in Custom Highlight
Atte Kettunen
bugzilla.mozilla.org/show_bug.cgi?id=1936982
www.mozilla.org/security/advisories/mfsa2025-07/
www.mozilla.org/security/advisories/mfsa2025-08/
www.mozilla.org/security/advisories/mfsa2025-09/
www.mozilla.org/security/advisories/mfsa2025-10/
www.mozilla.org/security/advisories/mfsa2025-11/
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