CVE-2025-10533

8.8 HIGH

Published: September 16, 2025 Modified: November 03, 2025

Description

Integer overflow in the SVG component. This vulnerability affects Firefox < 143, Firefox ESR < 115.28, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://bugzilla.mozilla.org/show_bug.cgi?id=1980788

Source: security@mozilla.org

Permissions Required

https://www.mozilla.org/security/advisories/mfsa2025-73/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-74/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-75/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-77/

Source: security@mozilla.org

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2025-78/

Source: security@mozilla.org

Vendor Advisory

https://lists.debian.org/debian-lts-announce/2025/09/msg00026.html

Source: af854a3a-2127-422b-91ae-364da2661108

7 reference(s) from NVD

Quick Stats

CVSS v3 Score

8.8 / 10.0

EPSS (Exploit Probability)

0.1%

23th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-190

Affected Vendors

mozilla

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