CVE-2026-92032
published 2026-09-15CVE-2026-92032: Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3…
PriorityP346critical9.6CVSS 3.1
AVNACLPRNUIRSCCHIHAH
EPSS
0.32%
23.3th percentile
Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 156 | Firefox 156 |
| mozilla | firefox | < 140.16.0 | 140.16.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 141.0 < 153.3.0 | 153.3.0 |
| mozilla | firefox | >= 154.0.0 < 156.0.0 | 156.0.0 |
| mozilla | firefox_esr | < Firefox ESR 153.3 | Firefox ESR 153.3 |
| mozilla | firefox_esr | < Firefox ESR 140.16 | Firefox ESR 140.16 |
| mozilla | thunderbird | < Thunderbird 156 | Thunderbird 156 |
| mozilla | thunderbird | < Thunderbird 153.3 | Thunderbird 153.3 |
| mozilla | thunderbird | < Thunderbird 140.16 | Thunderbird 140.16 |
| mozilla | thunderbird | < 140.16.0 | 140.16.0 |
| mozilla | thunderbird | — | — |
| mozilla | thunderbird | >= 141.0 < 153.3.0 | 153.3.0 |
| mozilla | thunderbird | >= 154.0 < 156.0 | 156.0 |
| rhel10 | firefox-flatpak | — | — |
| rhel10 | thunderbird-flatpak | — | — |
CVSS provenance
nvdv3.19.6CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
vendor_redhat6.1MEDIUM
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Red Hat
firefox: thunderbird: Sandbox escape due to invalid pointer in the Graphics component
vendor_redhat·2026-09-15·CVSS 6.1
CVE-2026-92032 [MEDIUM] CWE-476 firefox: thunderbird: Sandbox escape due to invalid pointer in the Graphics component
firefox: thunderbird: Sandbox escape due to invalid pointer in the Graphics component
Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Sandbox escape due to invalid pointer 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 Enterprise Li
Mozilla
Mozilla Foundation Security Advisory 2026-93: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-93: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-93
CVE: CVE-2026-92032
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.3
Mozilla
Mozilla Foundation Security Advisory 2026-90: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-90: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-90
CVE: CVE-2026-92032
Product: Firefox
Impact: low
Fixed in: Firefox 156
Mozilla
Mozilla Foundation Security Advisory 2026-94: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-94: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-94
CVE: CVE-2026-92032
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 156
Mozilla
Mozilla Foundation Security Advisory 2026-96: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-96: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-96
CVE: CVE-2026-92032
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.3
Mozilla
Mozilla Foundation Security Advisory 2026-92: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-92: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-92
CVE: CVE-2026-92032
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 140.16
Mozilla
Mozilla Foundation Security Advisory 2026-95: CVE-2026-92032
vendor_mozilla
CVE-2026-92032 Mozilla Foundation Security Advisory 2026-95: CVE-2026-92032
Mozilla Foundation Security Advisory 2026-95
CVE: CVE-2026-92032
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 140.16
VulDB
Mozilla Firefox up to 140.15/153.2/155 Graphics privileges management (Nessus ID 350767 / WID-SEC-2026-3375)
vuldb·2026-09-28·CVSS 9.6
CVE-2026-92032 [CRITICAL] Mozilla Firefox up to 140.15/153.2/155 Graphics privileges management (Nessus ID 350767 / WID-SEC-2026-3375)
A vulnerability was found in Mozilla Firefox up to 140.15/153.2/155. It has been classified as critical. Affected by this issue is some unknown functionality of the component Graphics. This manipulation causes improper privilege management.
This vulnerability is registered as CVE-2026-92032. Remote exploitation of the attack is possible. No exploit is available.
Upgrading the affected component is recommended.
GHSA
Sandbox escape due to invalid pointer in the Graphics component.
ghsa_unreviewed·2026-09-15
CVE-2026-92032 Sandbox escape due to invalid pointer in the Graphics component.
Sandbox escape due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 140.16, and Firefox ESR 153.3.
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2068437https://www.mozilla.org/security/advisories/mfsa2026-90/https://www.mozilla.org/security/advisories/mfsa2026-92/https://www.mozilla.org/security/advisories/mfsa2026-93/https://www.mozilla.org/security/advisories/mfsa2026-94/https://www.mozilla.org/security/advisories/mfsa2026-95/https://www.mozilla.org/security/advisories/mfsa2026-96/
2026-09-15
Published