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Vulnerabilities

Vulnerability · SUSE-SU-2026:4678-1

Security update for iperf

Published Oct 15, 2026 · catalog updated Oct 15, 2026 · Security update for iperf

Open the advisory

Exploitation likelihood is not on this record for SUSE-SU-2026:4678-1. A missing EPSS score is not a low risk. Compare Security update for iperf with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Security update for iperf).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
SUSE:Enterprise Storage 7.1 iperf · SUSE:Linux Enterprise Module for Package iperf

This update for iperf fixes the following issues: - CVE-2026-71217: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion (bsc#1284405). - CVE-2026-71218: unbounded peer-controlled allocation in JSON_read() allows unauthenticated remote memory exhaustion (bsc#1284404). - CVE-2026-101276: 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 (bsc#1283786). - CVE-2026-101283: 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 (bsc#1283787). - CVE-2026-102253: missing checks in the server's UDP receive worker allows unauthenticated remote attackers to cause an infinite loop (bsc#1283528). Changes for iperf: - Updated to version 3.22.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • SUSE:Enterprise Storage 7.1 iperf0 → 3.22-150000.3.18.1
  • SUSE:Linux Enterprise Module for Package iperf0 → 3.22-150000.3.18.1

How to fix SUSE-SU-2026:4678-1

  • Recommended remediation

    A patch or advisory reference is linked. Open the original publisher for availability by product version.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for SUSE-SU-2026:4678-1. A missing EPSS score is not a low risk. Compare Security update for iperf with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0 → 3.22-150000.3.18.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    This update for iperf fixes the following issues: - CVE-2026-71217: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion (bsc#1284405). - CVE-2026-71218: unbounded peer-controlled allocation in JSON_read() allows unauthenticated remote memory exhaustion (bsc#1284404). - CVE-2026-101276: iperf3 3.21 (esnet/iperf) contains a remote

  2. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    iperf fixed in 3.22-150000.3.18.1; iperf fixed in 3.22-150000.3.18.1

  3. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    iperf fixed in 3.22-150000.3.18.1

  4. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    This update for iperf fixes the following issues: - CVE-2026-71217: iperf3 server accepts unbounded peer-controlled JSON parameters enabling remote denial of service via resource exhaustion (bsc#1284405). - CVE-2026-71218: unbounded peer-controlled allocation in JSON_read() allows unauthenticated remote memory exhaustion (bsc#1284404). - CVE-2026-101276: iperf3 3.21 (esnet/iperf) contains a remote

Sources

References

Freshness

Last verified in this catalog Oct 15, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.