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Vulnerability IntelligenceCVE-2026-5733

CVE-2026-5733

HIGH8.8

Incorrect boundary conditions in the Graphics: WebGPU component

Published Apr 7, 2026

Modified 5 days ago

Fix available

Details

Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability affects Firefox < 149.0.2 and Thunderbird < 149.0.2.

Affected Packages

Firefox

Ubuntu 14.04 LTSUbuntu 16.04 LTSUbuntu 18.04 LTSUbuntu 20.04 LTSUbuntu 22.04 LTS

Fixed in:

149.0.2

Mozilla Firefox

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

149.0.2

References

WEB

https://bugzilla.mozilla.org/show_bug.cgi?id=2022554

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-5733

WEB

https://www.mozilla.org/security/advisories/mfsa2026-25/

WEB

https://www.mozilla.org/security/advisories/mfsa2026-28/

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems(30)

Ubuntu 14.04 LTS Ubuntu 16.04 LTS Ubuntu 18.04 LTS Ubuntu 20.04 LTS Ubuntu 22.04 LTS

Timeline

PublishedApr 7, 2026

ModifiedApr 7, 2026

CVE-2026-5733 | Mondoo Vulnerability Intelligence