CVE-2025-14322: firefox — Fix

Description

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.

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CVSS v3.1 Score

8.0

HIGH

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

Weakness Type (CWE)

CWE-754 CWE-754

Affected Products

Vendor	Product	Versions
mozilla	firefox	< 115.31.0
mozilla	firefox	< 146.0
mozilla	firefox	116.0 — 140.6.0
mozilla	thunderbird	< 140.6.0
mozilla	thunderbird	< 146.0

References

Advisories & Patches

https://www.mozilla.org/security/advisories/mfsa2025-92/ https://www.mozilla.org/security/advisories/mfsa2025-93/ https://www.mozilla.org/security/advisories/mfsa2025-94/ https://www.mozilla.org/security/advisories/mfsa2025-95/ https://www.mozilla.org/security/advisories/mfsa2025-96/

Other References

https://bugzilla.mozilla.org/show_bug.cgi?id=1996473

Frequently Asked Questions

What is CVE-2025-14322? +

Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6. It has a CVSS v3.1 base score of 8.0 (HIGH).

How severe is CVE-2025-14322? +

CVE-2025-14322 has a CVSS v3.1 score of 8.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-14322? +

CVE-2025-14322 affects products from mozilla, specifically: firefox, thunderbird. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-14322? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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