What’s Vulnerable › Vulnerabilities

CVE-2017-11541

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-07-23 · updated 2026-06-17
• Weakness: CWE-125

Description

tcpdump 4.9.0 has a heap-based buffer over-read in the lldp_print function in print-lldp.c, related to util-print.c.

Affected products

• The Tcpdump Group tcpdump: 4.9.0

References

• http://www.debian.org/security/2017/dsa-3971
• http://www.securityfocus.com/bid/99941
• http://www.securitytracker.com/id/1039307
• https://access.redhat.com/errata/RHEA-2018:0705
• https://github.com/hackerlib/hackerlib-vul/tree/master/tcpdump-vul/heap-buffer-overflow/util-print
• https://security.gentoo.org/glsa/201709-23
• https://support.apple.com/HT208221
• http://www.debian.org/security/2017/dsa-3971
• http://www.securityfocus.com/bid/99941
• http://www.securitytracker.com/id/1039307
• https://access.redhat.com/errata/RHEA-2018:0705
• https://github.com/hackerlib/hackerlib-vul/tree/master/tcpdump-vul/heap-buffer-overflow/util-print

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