SUSE-SU-2026:22026-1: important: Security update for frr

SLE-SECURITY-UPDATES null at suse.de
Mon Jun 8 20:32:31 UTC 2026 

# Security update for frr

Announcement ID: SUSE-SU-2026:22026-1  
Release Date: 2026-06-03T09:46:09Z  
Rating: important  
References:

  * bsc#1261013
  * bsc#1263859
  * bsc#1263863
  * bsc#1263974

  
Cross-References:

  * CVE-2026-28532
  * CVE-2026-37457
  * CVE-2026-37458
  * CVE-2026-5107

  
CVSS scores:

  * CVE-2026-28532 ( SUSE ):  6.0
    CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-28532 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-28532 ( NVD ):  6.0
    CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-28532 ( NVD ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-37457 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-37457 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-37458 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-37458 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-37458 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-5107 ( SUSE ):  2.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-5107 ( SUSE ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-5107 ( NVD ):  2.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-5107 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-5107 ( NVD ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves four vulnerabilities can now be installed.

## Description:

This update for frr fixes the following issues:

  * CVE-2026-5107: Fixed an improper access controls in EVPN Type-2 Route
    Handler (bsc#1261013).
  * CVE-2026-28532: Harden TE/SR TLV iteration against malformed lengths
    (bsc#1263859).
  * CVE-2026-37457: Fix off-by-one error in FlowSpec operator array bounds check
    (bsc#1263863).
  * CVE-2026-37458: Validate MP_REACH_NLRI attribute against incorrect next-hop
    (bsc#1263974).

## 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 Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-884=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-884=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * libmgmt_be_nb0-debuginfo-10.2.6-160000.1.1
    * libfrr_pb0-debuginfo-10.2.6-160000.1.1
    * libfrrospfapiclient0-debuginfo-10.2.6-160000.1.1
    * frr-debugsource-10.2.6-160000.1.1
    * libfrrcares0-10.2.6-160000.1.1
    * libfrrcares0-debuginfo-10.2.6-160000.1.1
    * libfrrsnmp0-10.2.6-160000.1.1
    * libfrrzmq0-debuginfo-10.2.6-160000.1.1
    * libfrrospfapiclient0-10.2.6-160000.1.1
    * frr-10.2.6-160000.1.1
    * libfrrzmq0-10.2.6-160000.1.1
    * libfrr0-debuginfo-10.2.6-160000.1.1
    * libfrr0-10.2.6-160000.1.1
    * libfrrsnmp0-debuginfo-10.2.6-160000.1.1
    * libfrrfpm_pb0-10.2.6-160000.1.1
    * frr-debuginfo-10.2.6-160000.1.1
    * libfrrfpm_pb0-debuginfo-10.2.6-160000.1.1
    * frr-devel-10.2.6-160000.1.1
    * libfrr_pb0-10.2.6-160000.1.1
    * libmgmt_be_nb0-10.2.6-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * libmgmt_be_nb0-debuginfo-10.2.6-160000.1.1
    * libfrr_pb0-debuginfo-10.2.6-160000.1.1
    * libfrrospfapiclient0-debuginfo-10.2.6-160000.1.1
    * frr-debugsource-10.2.6-160000.1.1
    * libfrrcares0-10.2.6-160000.1.1
    * libfrrcares0-debuginfo-10.2.6-160000.1.1
    * libfrrsnmp0-10.2.6-160000.1.1
    * libfrrzmq0-debuginfo-10.2.6-160000.1.1
    * libfrrospfapiclient0-10.2.6-160000.1.1
    * frr-10.2.6-160000.1.1
    * libfrrzmq0-10.2.6-160000.1.1
    * libfrr0-debuginfo-10.2.6-160000.1.1
    * libfrr0-10.2.6-160000.1.1
    * libfrrsnmp0-debuginfo-10.2.6-160000.1.1
    * libfrrfpm_pb0-10.2.6-160000.1.1
    * frr-debuginfo-10.2.6-160000.1.1
    * libfrrfpm_pb0-debuginfo-10.2.6-160000.1.1
    * frr-devel-10.2.6-160000.1.1
    * libfrr_pb0-10.2.6-160000.1.1
    * libmgmt_be_nb0-10.2.6-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-28532.html
  * https://www.suse.com/security/cve/CVE-2026-37457.html
  * https://www.suse.com/security/cve/CVE-2026-37458.html
  * https://www.suse.com/security/cve/CVE-2026-5107.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261013
  * https://bugzilla.suse.com/show_bug.cgi?id=1263859
  * https://bugzilla.suse.com/show_bug.cgi?id=1263863
  * https://bugzilla.suse.com/show_bug.cgi?id=1263974

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