CVE-2016-7993

9.8 criticalEPSS 3.4%

Critical (9.8) in tcpdump tcpdump. EPSS 3.4% chance of exploitation in the next 30 days.

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).

Severity

CVSS 3.0

9.8 critical

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

EPSS: 3.4% chance of exploitation in the next 30 days; higher than 88% of CVEs (scores of 2026-10-31)
CWE: CWE-119
Published: 2017-01-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tcpdump:tcpdump

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

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