CVE-2026-101276
Published: October 5, 2026Last modified: October 7, 2026
Description
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | iperf3 | Not affected (3.12-r0) |
| 25 LTS | iperf3 | Vulnerable (3.19-r0) | |
| Stream | iperf3 | Vulnerable (3.12-r0) |