Empty PKCS7 Sequence Handling Vulnerability in Firefox ESR, Firefox, and Thunderbird

CVE-2022-22747 · MEDIUM Severity

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

After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

Learn more about our Web Application Penetration Testing UK.