Is CVE-2022-3821 actively exploited?

CVE-2022-3821 has no public evidence of in-the-wild exploitation as of 2025-05-02.

What is the CVSS score for CVE-2022-3821?

CVE-2022-3821 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2022-3821?

Patch guidance is available from systemd project security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2022-3821.

CVE-2022-3821 - remediation guidance & executive summary

Q: Which products are affected by CVE-2022-3821?

4 products: systemd project systemd, redhat enterprise linux, redhat enterprise linux, fedoraproject fedora.

Description

An off-by-one Error issue was discovered in Systemd in format_timespan() function of time-util.c. An attacker could supply specific values for time and accuracy that leads to buffer overrun in format_timespan(), leading to a Denial of Service.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-193

Metadata

Primary Vendor: SYSTEMD_PROJECT
Published: 11/8/2022
Last Modified: 5/2/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

systemd_project : systemdredhat : enterprise_linuxredhat : enterprise_linuxfedoraproject : fedora

Remediation Guidance

Executive Summary

Cite this page

CVE-2022-3821. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2022-3821

View on NIST NVD

CVE-2022-3821 vulnerability