What’s Vulnerable › Vulnerabilities

CVE-2022-4121

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-01-17 · updated 2026-06-17
• Weakness: CWE-476

Description

In libetpan a null pointer dereference in mailimap_mailbox_data_status_free in low-level/imap/mailimap_types.c was found that could lead to a remote denial of service or other potential consequences.

Affected products

• libetpan: all versions

References

• https://github.com/dinhvh/libetpan/commit/5c9eb6b6ba64c4eb927d7a902317410181aacbba
• https://github.com/dinhvh/libetpan/issues/420
• https://github.com/dinhvh/libetpan/commit/5c9eb6b6ba64c4eb927d7a902317410181aacbba
• https://github.com/dinhvh/libetpan/issues/420
• https://lists.debian.org/debian-lts-announce/2025/07/msg00018.html

Get alerted when CVE-2022-4121 or the next vulnerability affects your stack