CVE-2022-28281

HIGH EXPLOITED

Mozilla Firefox < 99.0 - Out-of-Bounds Write

Title source: rule

Description

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.

Exploits (1)

nomisec WORKING POC 74 stars

by 0vercl0k · client-side

https://github.com/0vercl0k/CVE-2022-28281

View Code ZIP pw:eip

References (4)

[Exploit, Issue Tracking, Vendor Advisory] https://bugzilla.mozilla.org/show_bug.cgi?id=1755621

[Exploit, Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-13/

[Exploit, Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-14/

[Exploit, Vendor Advisory] https://www.mozilla.org/security/advisories/mfsa2022-15/

Scores

CVSS v3 8.8

EPSS 0.1457

EPSS Percentile 94.5%

Attack Vector NETWORK

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

Details

VulnCheck KEV 2022-08-15

CWE

CWE-787

Status published

Products (3)

mozilla/firefox < 99.0

mozilla/firefox_esr < 91.8

mozilla/thunderbird < 91.8

Published Dec 22, 2022

Tracked Since Feb 18, 2026