CVE-2026-101276
- State
- Published
- Severity
- 9.2 Critical
- Published
- Sep 30, 2026
- Updated
- Oct 1, 2026
- Reserved
- Sep 28, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.2 Critical | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | Anthropic |
Weaknesses
- CWE-416 Use after free
Affected Products
| Product | Versions |
|---|---|
iperf3esnet |
|
References
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