Is CVE-2013-6340 in the CISA KEV catalog?

No. CVE-2013-6340 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-6340?

CVE-2013-6340 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2013-6340?

CVE-2013-6340 has an EPSS score of 1.67% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-6340?

Upgrade wireshark on debian 11 to 1.10.3-1 or later.

CVE & CISA-KEV Catalog

CVE-2013-6340

MEDIUMEPSS 74th pctl

4.3

CVSS v2

NVD

Description

epan/dissectors/packet-tcp.c in the TCP dissector in Wireshark 1.8.x before 1.8.11 and 1.10.x before 1.10.3 does not properly determine the amount of remaining data, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.

CWE-20Improper Input Validation

How to fix

Remediation Available

wiresharkDebian

Fixed in:1.10.3-1CVE-2013-6340

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

1.67%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch3

Vendor Advisory1

wireshark.org

Other references5

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	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.