CVE-2026-100817

Other issue in the JavaScript: WebAssembly component

Published Sep 29, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
First Time appeared Mozilla thunderbird
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
Vendors & Products Mozilla thunderbird
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Weaknesses CWE-119
Type Values Removed Values Added
Weaknesses CWE-682
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'}

Type Values Removed Values Added
Weaknesses CWE-682
Type Values Removed Values Added
Weaknesses CWE-787
Type Values Removed Values Added
Description Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 157. Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
References
Type Values Removed Values Added
Weaknesses CWE-787
Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox
Type Values Removed Values Added
Description Other issue in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 157.
Title Other issue in the JavaScript: WebAssembly component
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Oct 1, 2026, 3:51 PM
Reserved
Sep 26, 2026, 7:18 PM
Status
Analyzed
Published
Sep 29, 2026, 1:17 PM
Modified
Oct 6, 2026, 2:35 PM