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SUSE Avahi Moderate Denial of Service Security Update 2026-3217-1

suse
Calendar Grey July 24, 2026
Scroller Suse
An update for avahi addresses a local DoS risk due to client limits. Install recommended patches for SUSE systems.
A security update for avahi addresses the CVE-2025-59529 vulnerability, which can cause local denial of service due to ignoring client limits, affecting various SUSE and openSUSE p...

Summary

## This update for avahi fixes the following issue: * CVE-2025-59529: local DoS due to simple protocol server ignoring client limit CLIENTS_MAX (bsc#1255451). ## 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 Enterprise Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-3217=1 * SUSE Linux Enterprise Micro for Rancher 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-3217=1 * SUSE Linux Enterprise Micro 5.3 zypper in -t patch SUSE-SLE-Micro-5.3-2026-3217=1 * SUSE Linux Enterprise Micro for Rancher 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-3217=1 * SUSE Linux Enterprise Micro 5.4 zypper in -t patch SUSE-SLE-Micro-5.4-2026-3217=1

Topics%20covered

Topics Covered

security advisory moderate SuSE DoS avahi

References

* bsc#1255451

Cross-

* CVE-2025-59529

CVSS scores:

* CVE-2025-59529 ( SUSE ): 6.8

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-59529 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-59529 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* openSUSE Leap 15.4

* SUSE Linux Enterprise Micro 5.3

* SUSE Linux Enterprise Micro 5.4

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Micro for Rancher 5.3

* SUSE Linux Enterprise Micro for Rancher 5.4

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-59529.html

* https://bugzilla.suse.com/show_bug.cgi?id=1255451

Severity
moderate
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Announcement ID: SUSE-SU-2026:3217-1
Release Date: 2026-07-23T17:33:52Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE DoS avahi

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