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iperf3 vulnerabilities

CVEs whose affected-version data names the iperf3 package. Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.

3 CVEsRSS

CVE-2026-101283Critical· 9.2
4w ago

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 …

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 …

▾ Midnightesnet · iperf3EPSS 0.38%via NVD
CVE-2026-101276Critical· 9.2
4w ago

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 …

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 …

▾ Midnightesnet · iperf3EPSS 0.40%via NVD
CVE-2026-102253High· 7.5PoC
1mo ago

iperf3 versions prior to 3.22 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash-loop the server's UDP receive worker into an unrecoverable infinite loop by sending a single crafted control-c…

iperf3 versions prior to 3.22 contains a denial of service vulnerability that allows unauthenticated remote attackers to crash-loop the server's UDP receive worker into an unrecoverable infinite loop by sending a single crafted control-c…

▾ Midnightesnet · iperf3EPSS 0.43%via NVD
iperf3 vulnerabilities (CVEs) · VulnSea