Unrated severityNVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026
CVE-2026-117920
CVE-2026-117920
Description
Use-after-free in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.
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Affected products
2- Range: up to 153.6
- Range: up to 159
Patches
Vulnerability mechanics
References
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