Unrated severityNVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026
CVE-2026-117940
CVE-2026-117940
Description
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Range: <153.6
- Range: before 159 (Firefox), before 153.6 (Firefox ESR)
Patches
Vulnerability mechanics
References
3News mentions
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