Is CVE-2013-2494 in the CISA KEV catalog?

No. CVE-2013-2494 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-2494?

CVE-2013-2494 has a CVSS v2 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2013-2494?

CVE-2013-2494 has an EPSS score of 1.17% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-2494?

Upgrade isc-dhcp on debian 11 to 4.2.4-6 or later.

CVE & CISA-KEV Catalog

CVE-2013-2494

MEDIUM

4.9

CVSS v2

NVD

Description

libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consumption) via vectors involving a regular expression, as demonstrated by a memory-exhaustion attack against a machine running a dhcpd process, a related issue to CVE-2013-2266.

CWE-119Buffer Overflow

How to fix

Remediation Available

isc-dhcpDebian

Fixed in:4.2.4-6CVE-2013-2494

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

1.17%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Vendor Advisory1

kb.isc.org

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.