CVE-2021-23970
MEDIUMFirefox < 86.0 - Reachable Assertion in Multithreaded WebAssembly Code
Title source: llmDescription
Context-specific code was included in a shared jump table; resulting in assertions being triggered in multithreaded wasm code. This vulnerability affects Firefox < 86.
References (3)
Core 3
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://www.mozilla.org/security/advisories/mfsa2021-07/
Issue Tracking, Permissions Required, Vendor Advisory x_refsource_misc
https://bugzilla.mozilla.org/show_bug.cgi?id=1681724
Third Party Advisory vendor-advisory
x_refsource_gentoo
https://security.gentoo.org/glsa/202104-10
Scores
CVSS v3
6.5
EPSS
0.0029
EPSS Percentile
52.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-617
Status
published
Products (1)
mozilla/firefox
< 86.0
Published
Feb 26, 2021
Tracked Since
Feb 18, 2026