Vulnerability Details : CVE-2021-29974

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.
Published 2021-08-05 20:15:09
Updated 2022-03-16 14:43:51
Source Mozilla Corporation
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-29974

EPSS FAQ
0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-29974

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.6
 LOW AV:N/AC:H/Au:N/C:N/I:P/A:N
4.9
2.9
 NIST
4.3
 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2.8
1.4
 NIST

References for CVE-2021-29974

Products affected by CVE-2021-29974

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