Is CVE-2017-11542 in the CISA KEV catalog?

No. CVE-2017-11542 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-11542?

CVE-2017-11542 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2017-11542?

CVE-2017-11542 has an EPSS score of 3.79% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-11542?

Upgrade tcpdump on debian 11 to 4.9.1-3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2017-11542

CRITICALEPSS 89th pctl

9.8

CVSS v3

NVD

Description

tcpdump 4.9.0 has a heap-based buffer over-read in the pimv1_print function in print-pim.c.

CWE-125Out-of-bounds Read

How to fix

Remediation Available

tcpdumpDebian

Fixed in:4.9.1-3CVE-2017-11542

tcpdumpUbuntu

Fixed in:4.9.2-0ubuntu0.14.04.1USN-3415-1

Fixed in:4.9.2-0ubuntu0.16.04.1USN-3415-1

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

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.79%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory1

securityfocus.com

Other references5

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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 2026-05-13.