Improper Check for Certificate Revocation in Firefox for Android - CVE-2020-26957
Published: November 17, 2020
Vulnerability identifier: #VU48476
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-26957
CWE-ID: CWE-299
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to OneCRL was non-functional in the Firefox for Android due to a missing service initialization. This could result in a failure to enforce some certificate revocations.
Affected software
Firefox for Android
firefox (Alpine package)
firefox (Alpine package)
How to mitigate CVE-2020-26957
Install updates from vendor's website.
Firefox for Android - update to 83.0.0