CVE-2026-101283
- State
- Published
- Severity
- 9.2 Critical
- Published
- Sep 30, 2026
- Updated
- Oct 1, 2026
- Reserved
- Sep 28, 2026
Description
iperf3 3.20–3.21 (esnet/iperf) has a pre-auth heap buffer overflow in decrypt_rsa_message(): a 256-byte RSA buffer is BIO_read with the attacker-controlled ciphertext length (guard warns only), so an unauthenticated client overflows the heap via an oversized authtoken; 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-122 Heap-based buffer overflow
Affected Products
| Product | Versions |
|---|---|
iperf3esnet |
|
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.