CVE-2022-22747

Mozilla: Crash when handling empty pkcs7 sequence

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Severity

Low

Red Hat Product Security

4.3

CVSS 3.1

Review impact separately from score.

Published · January 11, 2022

Updated · November 21, 2025

Description

The Mozilla Foundation Security Advisory describes this flaw as: 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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CWE-476 · NULL Pointer Dereference