CVE-2021-46828: Debian Linux

High severity, CVSS 7.5. EPSS: 2.9% chance of exploitation in the next 30 days.

In libtirpc before 1.3.3rc1, remote attackers could exhaust the file descriptors of a process that uses libtirpc because idle TCP connections are mishandled. This can, in turn, lead to an svc_run infinite loop without accepting new connections.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Libtirpc Project Libtirpc: before 1.3.3 (fixed in 1.3.3)

Published 2022-07-20. Last modified 2026-06-17.