CVE-2026-92014
published 2026-09-15CVE-2026-92014: Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41, Firefox ESR 140.16…
PriorityP345high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.24%
14.0th percentile
Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41, Firefox ESR 140.16, and Thunderbird 140.16.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < 115.41.0 | 115.41.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 116.0 < 140.16.0 | 140.16.0 |
| mozilla | firefox_esr | < Firefox ESR 115.41 | Firefox ESR 115.41 |
| mozilla | firefox_esr | < Firefox ESR 140.16 | Firefox ESR 140.16 |
| mozilla | thunderbird | < Thunderbird 140.16 | Thunderbird 140.16 |
| mozilla | thunderbird | < 140.16.0 | 140.16.0 |
| mozilla | thunderbird | — | — |
| rhel10 | firefox-flatpak | — | — |
| rhel10 | thunderbird-flatpak | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics component
vendor_redhat·2026-09-15·CVSS 8.8
CVE-2026-92014 [HIGH] CWE-787 firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics component
firefox: thunderbird: Privilege escalation due to incorrect boundary conditions in the Graphics component
Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41, Firefox ESR 140.16, and Thunderbird 140.16.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Privilege escalation due to incorrect boundary conditions in the Graphics component
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
Package: firefox (Red Hat Enterprise Linux 10) - Affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Affected
Package: rhel10/thunderbird-flatpak (Red Hat E
Mozilla
Mozilla Foundation Security Advisory 2026-91: CVE-2026-92014
vendor_mozilla·CVSS 8.8
CVE-2026-92014 [HIGH] Mozilla Foundation Security Advisory 2026-91: CVE-2026-92014
Mozilla Foundation Security Advisory 2026-91
CVE: CVE-2026-92014
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.41
Mozilla
Mozilla Foundation Security Advisory 2026-92: CVE-2026-92014
vendor_mozilla·CVSS 8.8
CVE-2026-92014 [HIGH] Mozilla Foundation Security Advisory 2026-92: CVE-2026-92014
Mozilla Foundation Security Advisory 2026-92
CVE: CVE-2026-92014
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 140.16
Mozilla
Mozilla Foundation Security Advisory 2026-95: CVE-2026-92014
vendor_mozilla·CVSS 8.8
CVE-2026-92014 [HIGH] Mozilla Foundation Security Advisory 2026-95: CVE-2026-92014
Mozilla Foundation Security Advisory 2026-95
CVE: CVE-2026-92014
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 140.16
GHSA
Privilege escalation due to incorrect boundary conditions in the Graphics component.
ghsa_unreviewed·2026-09-15
CVE-2026-92014 [HIGH] CWE-120 Privilege escalation due to incorrect boundary conditions in the Graphics component.
Privilege escalation due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox ESR 115.41 and Firefox ESR 140.16.
VulDB
Mozilla Firefox up to 115.40/140.15 Graphics privileges management (EUVD-2026-78477)
vuldb·2026-09-15·CVSS 8.8
CVE-2026-92014 [HIGH] Mozilla Firefox up to 115.40/140.15 Graphics privileges management (EUVD-2026-78477)
A vulnerability classified as critical was found in Mozilla Firefox up to 115.40/140.15. This issue affects some unknown processing of the component Graphics Component. The manipulation results in improper privilege management.
This vulnerability is identified as CVE-2026-92014. The attack can be executed remotely. There is not any exploit available.
Upgrading the affected component is advised.
No detection rules found.
No public exploits indexed.
2026-09-15
Published