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CVE-2026-2801 Details

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=2009901	[email protected]	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-13/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-16/	[email protected]	Vendor Advisory

CWE-ID	CWE Name	Source
CWE-754	Improper Check for Unusual or Exceptional Conditions	[email protected]
CWE-754	Improper Check for Unusual or Exceptional Conditions	CISA-ADP

Product	Versions
mozilla firefox	< 148.0
CPE cpe:2.3:a:mozilla:firefox:::::-:::* Remediation No remediation found in references.
mozilla thunderbird	< 148.0
CPE cpe:2.3:a:mozilla:thunderbird:::::-:::* Remediation No remediation found in references.

7 change records found show changes

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