CVE-2026-101283
esnet iperf3
- esnet iperf3
- Critical
- CVSS 9.2
- EPSS 0.38%
- No fixed version listed
What to do
No fixed version listed
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| esnet iperf3 | 3.20; 3.21 | None listed |
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.2 (v4.0, scored by Anthropic)
- EPSS
- 0.38% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 26, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: no. Technical impact: total. As of Oct 1, 2026.
- Weakness
- CWE-122: Heap-based buffer overflow
- Vendor
- esnet, iperf3
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.