CVE-2026-92070: Mozilla Firefox · Information Exposure
Affects Mozilla FirefoxSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
AI-suggested
Users and administrators should update to Firefox 156, Firefox ESR 153.3, Thunderbird 156, or Thunderbird 153.3 to remediate this vulnerability. The vendor advisory confirms that the issue is fixed in these versions. No additional mitigation is required once updated.
Description
Information disclosure in the Networking component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 153.3.
References
- bugzilla.mozilla.org/show_bug.cgi?id=2060220 (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-90/ (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-93/ (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-94/ (opens in a new tab)
- mozilla.org/security/advisories/mfsa2026-96/ (opens in a new tab)