CVSS v3
8.8
HIGH
EPSS Score
13.8%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
Active exploitation of CVE-2022-28281 has not been confirmed. The EPSS score is 13.8%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2022-28281 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).