CVE-2025-54349
criticalpriority · track · 40EPSS 0.004 · 38 %ileDEEURUUSEPSS · scored 2026-10-27
In iperf before 3.19.1, iperf_auth.c has an off-by-one error and resultant heap-based buffer overflow.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixediperf3-0:3.5-12.el8_10.i686 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.5-12.el8_10.x86_64 as component of SUSE Liberty Linux 8suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.9-14.el9_7.1.i686 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.9-14.el9_7.1.x86_64 as component of SUSE Liberty Linux 9suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.17.1-5.el10_1.x86_64 as component of SUSE Liberty Linux 10suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.9-14.el9_6.1.i686 as component of SUSE Liberty Linux 9.6 EMSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixediperf3-0:3.9-14.el9_6.1.x86_64 as component of SUSE Liberty Linux 9.6 EMSsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (13)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- RHSA-2026:1592security update for iperf32026-01-29csaf · suse_csafDE
security update for iperf3
- RHSA-2026:1595security update for iperf32026-01-29csaf · suse_csafDE
security update for iperf3
- RHSA-2026:1597security update for iperf32026-01-29csaf · suse_csafDE
security update for iperf3
- RHSA-2026:1760security update for iperf32026-02-02csaf · suse_csafDE
security update for iperf3
- WID-SEC-W-2026-0258Red Hat Enterprise Linux (iperf3): Schwachstelle ermöglicht CodeausführungDeutsch2026-01-29csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial-of-Service-Zustand zu verursachen oder möglicherweise beliebigen Code auszuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (8)
External citations — patches, advisories, analysis.
- https://github.com/esnet/iperf/commit/4e5313bab0b9b3fe03513ab54f722c8a3e4b7bdfcnnvd
- https://github.com/esnet/iperf/releasesPatchcnnvd
- https://github.com/esnet/iperf/releases/tag/3.19.1cnnvd
- https://github.com/esnet/iperf/commit/4e5313bab0b9b3fe03513ab54f722c8a3e4b7bdfenisa_euvd
- https://github.com/esnet/iperf/releases/tag/3.19.1enisa_euvd
- https://github.com/esnet/iperf/commit/4e5313bab0b9b3fe03513ab54f722c8a3e4b7bdfPatchnvd
- https://github.com/esnet/iperf/releases/tag/3.19.1Release Notesnvd
- https://lists.debian.org/debian-lts-announce/2025/08/msg00020.htmlnvd
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