CVE-2026-2805
published 2026-02-24CVE-2026-2805: Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
PriorityP345critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.40%
32.7th percentile
Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | < firefox 148.0-1 (sid) | firefox 148.0-1 (sid) |
| mozilla | firefox | < 148.0 | 148.0 |
| mozilla | firefox | — | — |
| mozilla | thunderbird | < 148.0 | 148.0 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
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Red Hat
firefox: thunderbird: Invalid pointer in the DOM: Core & HTML component
vendor_redhat·2026-02-24·CVSS 9.8
CVE-2026-2805 [CRITICAL] firefox: thunderbird: Invalid pointer in the DOM: Core & HTML component
firefox: thunderbird: Invalid pointer in the DOM: Core & HTML component
Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:
Invalid pointer in the DOM: Core & HTML 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) - Not affected
Package: rhel10/firefox-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: rhel10/thunderbird-flatpak (Red Hat Enterprise Linux 10) - Not affected
Package: thunderbird (Red Hat Enterprise Linux 10) - Not affected
Package: firefox (Red H
Debian
CVE-2026-2805: firefox - Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Fi...
vendor_debian·2026·CVSS 9.8
CVE-2026-2805 [CRITICAL] CVE-2026-2805: firefox - Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Fi...
Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
Scope: local
sid: resolved (fixed in 148.0-1)
Mozilla
Mozilla Foundation Security Advisory 2026-16: CVE-2026-2805
vendor_mozilla·CVSS 9.8
CVE-2026-2805 [CRITICAL] Mozilla Foundation Security Advisory 2026-16: CVE-2026-2805
Mozilla Foundation Security Advisory 2026-16
CVE: CVE-2026-2805
Product: Thunderbird
Impact: high
Fixed in: Thunderbird 148
Mozilla
Mozilla Foundation Security Advisory 2026-13: CVE-2026-2805
vendor_mozilla·CVSS 9.8
CVE-2026-2805 [CRITICAL] Mozilla Foundation Security Advisory 2026-13: CVE-2026-2805
Mozilla Foundation Security Advisory 2026-13
CVE: CVE-2026-2805
Product: Firefox
Impact: high
Fixed in: Firefox 148
GHSA
GHSA-62xf-gv4m-h3vc: Invalid pointer in the DOM: Core & HTML component
ghsa_unreviewed·2026-02-24
CVE-2026-2805 [CRITICAL] CWE-824 GHSA-62xf-gv4m-h3vc: Invalid pointer in the DOM: Core & HTML component
Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Firefox < 148.
OSV
CVE-2026-2805: Invalid pointer in the DOM: Core & HTML component
osv·2026-02-24·CVSS 9.8
CVE-2026-2805 [CRITICAL] CVE-2026-2805: Invalid pointer in the DOM: Core & HTML component
Invalid pointer in the DOM: Core & HTML component. This vulnerability affects Firefox < 148 and Thunderbird < 148.
No detection rules found.
No public exploits indexed.
2026-02-24
Published