CRITICAL 9.2 NVD

CVE-2026-101276

iperf3 3.21 (esnet/iperf) contains a remote, unauthenticated heap use-after-free: the server's per-test watchdog server_timer_proc() frees streams without cance

iperf3 3.21 (esnet/iperf) contains a remote, unauthenticated heap use-after-free: the server's per-test watchdog server_timer_proc() frees streams without cancelling/joining their worker threads, so a blocked worker dereferences a freed iperf_stream; fixed in 3.22.

References

https://newreleases.io/project/github/esnet/iperf/release/3.22

Published: 2026-09-30 · Source: NVD · Feed updated: 2026-10-01

This critical severity vulnerability with a CVSS score of 9.2 was published on 2026-09-30 via NVD.

Risk Timeline

CVE Disclosed2026-09-30 · 0 days ago

Remediation Resources

Official Advisory

newreleases.io/project/github/esnet/iperf/release/3.22

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