Is CVE-2012-6056 in the CISA KEV catalog?

No. CVE-2012-6056 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-6056?

CVE-2012-6056 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2012-6056?

CVE-2012-6056 has an EPSS score of 2.66% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-6056?

Upgrade wireshark on debian 11 to 1.8.6-1 or later.

CVE & CISA-KEV Catalog

CVE-2012-6056

MEDIUMEPSS 84th pctl

5.0

CVSS v2

NVD

Description

Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.

CWE-189

How to fix

Remediation Available

wiresharkDebian

Fixed in:1.8.6-1CVE-2012-6056

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

2.66%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Patch1

anonsvn.wireshark.org

Vendor Advisory1

wireshark.org

Other references6

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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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.