CVE-2022-28281

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.

Affected

Mozilla · Thunderbird · Firefox · Firefox ESR

CVSS v3.1 NVD

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

2.56% chance of exploitation in the next 30 days, 85th percentile

Published

2022-12-22

Updated

2025-04-15

Proof-of-concept exploits (1)

• 0vercl0k/CVE-2022-2828173★ · 2022-04-08

Security advisories

• https://bugzilla.mozilla.org/show_bug.cgi?id=1755621
• https://www.mozilla.org/security/advisories/mfsa2022-13
• https://www.mozilla.org/security/advisories/mfsa2022-14
• https://www.mozilla.org/security/advisories/mfsa2022-15

References

• CVE Record
• NVD entry

Related

• CVE-2019-11708
• CVE-2019-9810
• CVE-2021-24086
• CVE-2021-28476
• CVE-2021-31166
• CVE-2021-32537