CVE-2026-109775 Details
Description
Denial-of-service in the WebRTC component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
A denial-of-service vulnerability has been identified in the WebRTC component of Mozilla Firefox and Firefox ESR. This issue can cause a significant disruption by overwhelming system resources or processes, leading to a slowdown or crash. The vulnerability was reported by Shu Takahashi of Velcore Consulting Inc.
Users can upgrade to Firefox 158 or Firefox ESR 153.5 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 13, 2026CISA-ADP
Assessed Oct 13, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=2068255 | [email protected] | Issue TrackingPermission RequiredVendor |
| https://www.mozilla.org/security/advisories/mfsa2026-106/ | [email protected] | AdvisoryBundleRemedyVendor |
| https://www.mozilla.org/security/advisories/mfsa2026-108/ | [email protected] | AdvisoryBundleRemedyVendor |
| https://www.mozilla.org/security/advisories/mfsa2026-109/ | [email protected] | |
| https://www.mozilla.org/security/advisories/mfsa2026-110/ | [email protected] |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-400 | Uncontrolled Resource Consumption | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Mozilla Firefox | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 13, 2026 | CVE Modified | [email protected] |
| Oct 13, 2026 | CVE Modified | CISA-ADP |
| Oct 13, 2026 | New CVE Received | [email protected] |