How severe is CVE-2022-4121?

CVE-2022-4121 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-4121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-4121?

CVE-2022-4121 affects Libetpan Project Libetpan. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4121?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-4121 published?

CVE-2022-4121 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2022-4121

CVE-2022-4121 is a medium-severity vulnerability in Libetpan Project Libetpan with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Libetpan Project Libetpan
Published: 2023-01-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-4121?: 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.
How severe is CVE-2022-4121?: CVE-2022-4121 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-4121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-4121?: CVE-2022-4121 affects Libetpan Project Libetpan. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-4121 published?: CVE-2022-4121 was published on 2023-01-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:libetpan_project:libetpan:-:*:*:*:*:*:*:*

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