Is CVE-2013-4391 being actively exploited?

CVE-2013-4391 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-4391?

CVE-2013-4391 has a CVSS 2.0 base score of 7.5 (HIGH).

CVE-2013-4391

HIGH · CVSS 7.5EPSS 5.4%EU EUVD

Integer overflow in the valid_user_field function in journal/journald-native.c in systemd allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large journal data field, which triggers a heap-based buffer overflow.

Key facts

CVSS score: 7.5 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): CWE-190
EPSS score: 5.4% (93th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-4270)
Published: October 28, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4270 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
systemd project / systemd

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=725357(Issue Tracking, Mailing List, Patch, Third Party Advisory)
http://cgit.freedesktop.org/systemd/systemd/commit/?id=505b6a61c22d5565e9308045c7b9bf79f7d0517e(Exploit, Patch, Vendor Advisory)
http://www.debian.org/security/2013/dsa-2777(Third Party Advisory)
http://www.openwall.com/lists/oss-security/2013/10/01/9(Mailing List, Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=859051(Issue Tracking, Patch, Third Party Advisory)
https://security.gentoo.org/glsa/201612-34(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain