CVE-2021-29974 — Mozilla Firefox vulnerability
6 documents6 sources
Severity
4.3MEDIUMNVD
EPSS
0.4%
top 39.87%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 5
Latest updateMay 24
Description
When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NExploitability: 2.8 | Impact: 1.4