$ cve CVE-2017-12902 JSON

CVE-2017-12902

9.8

CRITICAL · CVSS 3.1 · EPSS 3.5% (pctl 89)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

The Zephyr parser in tcpdump before 4.9.2 has a buffer over-read in print-zephyr.c, several functions.

CVSS	9.8 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS	3.48% — more likely to be exploited than 89% of all CVEs
Weakness	CWE-125
On CISA KEV	no
Public exploit	none known
Published	2017-09-14
Last modified	2026-06-17