CVE-2026-100795: Vulnerability in Mozilla Firefox
Denial-of-service in the Networking component. This vulnerability was fixed in Firefox 157.
AI Analysis
Technical Summary
CVE-2026-100795 is a denial-of-service vulnerability affecting the Networking component of Mozilla Firefox. The flaw was identified and resolved in Firefox version 157. The Mozilla Foundation Security Advisory 2026-97 lists this vulnerability among multiple high-impact security issues fixed in Firefox 157. The advisory confirms the fix and provides references to the underlying bug report. No CVSS score is provided for this vulnerability.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service condition in Firefox versions prior to 157 by exploiting the Networking component. This could disrupt normal browser operation, impacting availability for users running affected versions.
Mitigation Recommendations
Users and administrators should update Firefox to version 157 or later to remediate this vulnerability. Mozilla has released an official fix in Firefox 157, and applying this update fully mitigates the issue. No additional mitigation steps are required beyond updating to the fixed version.
CVE-2026-100795: Vulnerability in Mozilla Firefox
Description
Denial-of-service in the Networking component. This vulnerability was fixed in Firefox 157.
CVSS v3.1
Score 6.5medium
Affected software
Mozilla
Firefox
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-100795 is a denial-of-service vulnerability affecting the Networking component of Mozilla Firefox. The flaw was identified and resolved in Firefox version 157. The Mozilla Foundation Security Advisory 2026-97 lists this vulnerability among multiple high-impact security issues fixed in Firefox 157. The advisory confirms the fix and provides references to the underlying bug report. No CVSS score is provided for this vulnerability.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service condition in Firefox versions prior to 157 by exploiting the Networking component. This could disrupt normal browser operation, impacting availability for users running affected versions.
Mitigation Recommendations
Users and administrators should update Firefox to version 157 or later to remediate this vulnerability. Mozilla has released an official fix in Firefox 157, and applying this update fully mitigates the issue. No additional mitigation steps are required beyond updating to the fixed version.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-26T19:17:30.645Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-97/","vendor":"Mozilla"}]
Threat ID: 6abbb3f1f7a7c54106640993
Added to database: 09/29/2026, 12:49:53 UTC
Last enriched: 09/29/2026, 13:18:19 UTC
Last updated: 09/29/2026, 18:20:12 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.