CVE-2026-109738 Affecting firefox-x11 package, versions <0:153.5.0-1.0.1.el9_8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published26 Oct 2026
- disclosed13 Oct 2026
Introduced: 13 Oct 2026
NewCVE-2026-109738 (opens in a new tab)How to fix?
Upgrade Oracle:9 firefox-x11 to version 0:153.5.0-1.0.1.el9_8 or higher.
This issue was patched in ELSA-2026-89757.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox-x11 package and not the firefox-x11 package as distributed by Oracle.
See How to fix? for Oracle:9 relevant fixed versions and status.
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
References
- https://linux.oracle.com/cve/CVE-2026-109738.html
- https://linux.oracle.com/errata/ELSA-2026-89757.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=2047722
- https://www.mozilla.org/security/advisories/mfsa2026-106/
- https://www.mozilla.org/security/advisories/mfsa2026-108/
- https://www.mozilla.org/security/advisories/mfsa2026-109/
- https://www.mozilla.org/security/advisories/mfsa2026-110/