CVE-2017-12998

9.8 criticalEPSS 2.4%

Critical (9.8) in tcpdump tcpdump. EPSS 2.4% chance of exploitation in the next 30 days.

The IS-IS parser in tcpdump before 4.9.2 has a buffer over-read in print-isoclns.c:isis_print_extd_ip_reach().

Severity

9.8 critical

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

EPSS: 2.4% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2017-09-14
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19