Is CVE-2013-4391 in the CISA KEV catalog?

No. CVE-2013-4391 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-4391?

CVE-2013-4391 has a CVSS v2 base score of 7.5 (HIGH).

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

CVE-2013-4391 has an EPSS score of 5.34% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-4391?

Upgrade systemd on debian 11 to 204-5 or later.

CVE & CISA-KEV Catalog

CVE-2013-4391

HIGHEPSS 92th pctl

7.5

CVSS v2

NVD

Description

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.

CWE-190Integer Overflow

How to fix

Remediation Available

systemdDebian

Fixed in:204-5CVE-2013-4391

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

5.34%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch3

Third-Party Advisory3

Related Vulnerabilities

Other CWE-190 (Integer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16040	Medium	6.5	100%	-	Fix
CVE-2019-11477	High	7.5	99%	-	Fix
CVE-2023-44443	High	7.8	94%	-	Fix
CVE-2014-0569	High	9.3	90%	-	-
CVE-2017-3599	High	7.5	90%	-	Fix
CVE-2023-21716	Critical	9.8	82%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.