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SUSE Linux Micro iperf Security Alert SUSE-SU-2026-20315-3

suse
Calendar Grey February 13, 2026
Dist Suse Esm H88
Update for iperf fixes several important issues including buffer overflows and application exit flaws. Essential for security.
An update that solves three vulnerabilities can now be installed.

Summary

## This update for iperf fixes the following issues: Update to 3.19.1: * CVE-2025-54349: Fixed off-by-one error and resultant heap-based buffer overflow (bsc#1247519). * CVE-2025-54350: Fixed Base64Decode assertion failure and application exit upon a malformed authentication attempt (bsc#1247520). * CVE-2025-54351: Fixed buffer overflow when --skip-rx-copy is used (for MSG_TRUNC in recv) (bsc#1247522). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Micro Extras 6.0 zypper in -t patch SUSE-SLE-Micro-Extras-6.0-448=1 ## Package List: * SUSE Linux Micro Extras 6.0 (aarch64 ppc64le s390x x86_64) * libiperf0-debuginfo-3.19.1-1.1

Topics%20covered

Topics Covered

security advisory buffer overflow important SUSE Linux Micro iperf application exit

References

* bsc#1247519

* bsc#1247520

* bsc#1247522

Cross-

* CVE-2025-54349

* CVE-2025-54350

* CVE-2025-54351

CVSS scores:

* CVE-2025-54349 ( SUSE ): 5.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

* CVE-2025-54349 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

* CVE-2025-54349 ( NVD ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

* CVE-2025-54350 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

* CVE-2025-54350 ( NVD ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2025-54350 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2025-54351 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

* CVE-2025-54351 ( NVD ): 8.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20311-1
Release Date: 2025-09-05T12:57:05Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow important SUSE Linux Micro iperf application exit

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