Loop with Unreachable Exit Condition ('Infinite Loop') Affecting iperf-devel package, versions <3.22-150000.3.18.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.43% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES157-IPERFDEVEL-21000676
  • published16 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-102253  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 iperf-devel to version 3.22-150000.3.18.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream iperf-devel package and not the iperf-devel package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

iperf3 versions prior to 3.22 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash-loop the server's UDP receive worker into an unrecoverable infinite loop by sending a single crafted control-channel parameter message followed by one 16-byte UDP datagram. Attackers can permanently pin the affected per-stream receive thread at approximately 100% CPU usage, rendering the server unusable until forcibly killed with SIGKILL, as the process does not respond to normal control-channel closure.

CVSS Base Scores

version 3.1