CVE-2026-92024
published 2026-09-15CVE-2026-92024: Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156…
PriorityP347high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.32%
23.0th percentile
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, Thunderbird 140.16, and Thunderbird 153.3.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| mozilla | firefox | < Firefox 156 | Firefox 156 |
| mozilla | firefox | < 115.41.0 | 115.41.0 |
| mozilla | firefox | — | — |
| mozilla | firefox | >= 116.0 < 140.16.0 | 140.16.0 |
| 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 140.16 | Firefox ESR 140.16 |
| mozilla | firefox_esr | < Firefox ESR 153.3 | Firefox ESR 153.3 |
| mozilla | firefox_esr | < Firefox ESR 115.41 | Firefox ESR 115.41 |
| mozilla | thunderbird | < Thunderbird 156 | Thunderbird 156 |
| mozilla | thunderbird | < Thunderbird 140.16 | Thunderbird 140.16 |
| mozilla | thunderbird | < Thunderbird 153.3 | Thunderbird 153.3 |
| 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
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat7.5HIGH
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VulDB
Mozilla Firefox up to 115.40/140.15/153.2/155 SVG use after free (WID-SEC-2026-3375)
vuldb·2026-09-22·CVSS 8.8
CVE-2026-92024 [HIGH] Mozilla Firefox up to 115.40/140.15/153.2/155 SVG use after free (WID-SEC-2026-3375)
A vulnerability classified as critical has been found in Mozilla Firefox up to 115.40/140.15/153.2/155. The affected element is an unknown function of the component SVG. This manipulation causes use after free.
The identification of this vulnerability is CVE-2026-92024. It is possible to initiate the attack remotely. There is no exploit available.
It is recommended to upgrade the affected component.
GHSA
Use-after-free in the SVG component.
ghsa_unreviewed·2026-09-15
CVE-2026-92024 Use-after-free in the SVG component.
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, and Firefox ESR 153.3.
Red Hat
firefox: thunderbird: Use-after-free in the SVG component
vendor_redhat·2026-09-15·CVSS 7.5
CVE-2026-92024 [HIGH] CWE-825 firefox: thunderbird: Use-after-free in the SVG component
firefox: thunderbird: Use-after-free in the SVG component
Use-after-free in the SVG component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Use-after-free in the SVG 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 Linux 10) - Affected
Package: thunderbird (Red Hat Enterprise Linux 10) - Affected
Mozilla
Mozilla Foundation Security Advisory 2026-94: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-94: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-94
CVE: CVE-2026-92024
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 156
Mozilla
Mozilla Foundation Security Advisory 2026-95: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-95: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-95
CVE: CVE-2026-92024
Product: Thunderbird
Impact: moderate
Fixed in: Thunderbird 140.16
Mozilla
Mozilla Foundation Security Advisory 2026-92: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-92: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-92
CVE: CVE-2026-92024
Product: Firefox ESR
Impact: moderate
Fixed in: Firefox ESR 140.16
Mozilla
Mozilla Foundation Security Advisory 2026-90: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-90: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-90
CVE: CVE-2026-92024
Product: Firefox
Impact: low
Fixed in: Firefox 156
Mozilla
Mozilla Foundation Security Advisory 2026-96: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-96: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-96
CVE: CVE-2026-92024
Product: Thunderbird
Impact: low
Fixed in: Thunderbird 153.3
Mozilla
Mozilla Foundation Security Advisory 2026-93: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-93: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-93
CVE: CVE-2026-92024
Product: Firefox ESR
Impact: low
Fixed in: Firefox ESR 153.3
Mozilla
Mozilla Foundation Security Advisory 2026-91: CVE-2026-92024
vendor_mozilla
CVE-2026-92024 Mozilla Foundation Security Advisory 2026-91: CVE-2026-92024
Mozilla Foundation Security Advisory 2026-91
CVE: CVE-2026-92024
Product: Firefox ESR
Impact: high
Fixed in: Firefox ESR 115.41
No detection rules found.
No public exploits indexed.
https://bugzilla.mozilla.org/show_bug.cgi?id=2068354https://www.mozilla.org/security/advisories/mfsa2026-90/https://www.mozilla.org/security/advisories/mfsa2026-91/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