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CVE-2026-92016: firefox before 140.16.0 (exclusive), from 141.0 (inclusive), before 153.3.0 (exclusive), from 154.0.0 (inclusive)…
CVE-2026-92016 affects firefox-esr. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.00333 (percentile 0.24216), scored 2026-10-05. Fixed version: 140.16.0esr-1~deb12u1. Fixed version: 140.16.0esr-1~deb13u1. Fixed version: 140.16.0esr-1. Fixed version: 1:140.16.0esr-1~deb12u1. Fixed version: 1:140.16.0esr-1~deb13u1. Fixed version: 1:153.3.0esr-1.
Affected technology
firefox · before 140.16.0 (exclusive)
mozilla
firefox · from 141.0 (inclusive), before 153.3.0 (exclusive)
mozilla
firefox · from 154.0.0 (inclusive), before 156.0.0 (exclusive)
mozilla
thunderbird · before 140.16.0 (exclusive)
mozilla
thunderbird · from 141.0 (inclusive), before 153.3.0 (exclusive)
mozilla
thunderbird · from 154.0 (inclusive), before 156.0 (exclusive)
mozilla
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-416
- Product
- firefox-esr
- CCR priority
- 35.3 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00333 · percentile 0.24216 · 2026-10-05
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-06 17:55:17.257073+00:00 UTC
- OSV.dev · Source record · observed 2026-10-06 17:58:42.508367+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-92016.html