CVE-2026-101276
Last modified
CVE-2026-101276 is a critical-severity vulnerability rated 9.2/10 on the CVSS scale. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| esnet | iperf3 | 3.21 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
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