What’s Vulnerable › Vulnerabilities

CVE-2016-7993

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-01-28 · updated 2026-06-17
• Weakness: CWE-119

Description

A bug in util-print.c:relts_print() in tcpdump before 4.9.0 could cause a buffer overflow in multiple protocol parsers (DNS, DVMRP, HSRP, IGMP, lightweight resolver protocol, PIM).

Affected products

• The Tcpdump Group tcpdump: through 4.8.1

References

• http://www.debian.org/security/2017/dsa-3775
• http://www.securityfocus.com/bid/95852
• http://www.securitytracker.com/id/1037755
• https://access.redhat.com/errata/RHSA-2017:1871
• https://security.gentoo.org/glsa/201702-30
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html
• http://www.debian.org/security/2017/dsa-3775
• http://www.securityfocus.com/bid/95852
• http://www.securitytracker.com/id/1037755
• https://access.redhat.com/errata/RHSA-2017:1871
• https://security.gentoo.org/glsa/201702-30
• https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html

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