CVE•Published 2017-01-28•Modified 2026-05-13•1 article on news•5 live references•NVD data
CVE-2016-7993Tcpdump · Tcpdump
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
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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).
Timeline
Published 2017-01-28
Modified 2026-05-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2016-7993Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Tcpdump Tcpdump"All exposed Tcpdump Tcpdump instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Tcpdump"HTTP body or banner mentions "Tcpdump" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2016-7993Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2016-7993Censys host search filtered to this CVE id.
grep.app
CVE-2016-7993Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2016-7993GitHub code search for direct mentions.
Google dork
"CVE-2016-7993" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2016-7993 on GitHub.