CVE-2019-15162: Tcpdump Libpcap

Medium severity, CVSS 5.3. EPSS: 1.8% chance of exploitation in the next 30 days.

rpcapd/daemon.c in libpcap before 1.9.1 on non-Windows platforms provides details about why authentication failed, which might make it easier for attackers to enumerate valid usernames.

Affected products

• Tcpdump Libpcap: before 1.9.1 (fixed in 1.9.1)

Published 2019-10-03. Last modified 2026-06-17.