CVE-2026-113399
UnknownSummary
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
Risk Assessment
May lead to incorrect processing of SVG files, potentially causing a crash or other impacts in the browser/email client.
Recommendation
Update Firefox and Thunderbird to version 158.0.1 or later.
Other vulnerabilities in Firefox and Thunderbird
See all- CVE-2026-113400Medium
An uninitialized memory vulnerability in the Audio/Video: cubeb component of Firefox and Thunderbird. The issue was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
- CVE-2025-13013Medium
A mitigation bypass vulnerability exists in the DOM: Core & HTML component of Firefox and Thunderbird. It was fixed in Firefox 145, Firefox ESR 140.5, Firefox ESR 115.30, Thunderbird 145, and Thunderbird 140.5.
Original NVD description (English source)
Incorrect boundary conditions in the SVG component. This vulnerability was fixed in Firefox 158.0.1 and Thunderbird 158.0.1.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS