What’s Vulnerable › Vulnerabilities

CVE-2017-12987

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-09-14 · updated 2026-06-17
• Weakness: CWE-125

Description

The IEEE 802.11 parser in tcpdump before 4.9.2 has a buffer over-read in print-802_11.c:parse_elements().

Affected products

• Debian Linux: 9.0, 10.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.6, 7.7
• The Tcpdump Group tcpdump: through 4.9.1

References

• http://www.debian.org/security/2017/dsa-3971
• http://www.securitytracker.com/id/1039307
• http://www.tcpdump.org/tcpdump-changes.txt
• https://access.redhat.com/errata/RHEA-2018:0705
• https://github.com/the-tcpdump-group/tcpdump/commit/2ecb9d2c67d9119250c54811a6ce4d0f2ddf44f1
• https://github.com/the-tcpdump-group/tcpdump/commit/99798bd9a41bd3d03fdc1e949810a38967f20ed3
• https://security.gentoo.org/glsa/201709-23
• https://support.apple.com/HT208221
• http://www.debian.org/security/2017/dsa-3971
• http://www.securitytracker.com/id/1039307
• http://www.tcpdump.org/tcpdump-changes.txt
• https://access.redhat.com/errata/RHEA-2018:0705

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