CVE-2022-28281
63Vexday Risk Score
Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.
ssvc Actcvss 8.8epss 2.6%
from disclosure to weapon0 days
Published on NVDDec 22
1st PoCApr 8
VulnCheckAug 15
exploitation probability
2.6%top 16% of all CVEs
observed exploitation
yesVulnCheck
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
public PoCs found — 1
vulncheckvulncheck.com/xdb/d85e044652d7unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.