SUSE alert SUSE-SU-2026:2121-1 (frr)

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SUSE-SU-2026:2121-1: moderate: Security update for frr
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Fri, 29 May 2026 20:37:22 -0000
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<178008704218.435.7255202636733531427@cf67f1158b88>
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Article
# Security update for frr

Announcement ID: SUSE-SU-2026:2121-1  
Release Date: 2026-05-29T15:36:42Z  
Rating: moderate  
References:

  * bsc#1252761
  * bsc#1252810
  * bsc#1252811
  * bsc#1252812
  * bsc#1252813
  * bsc#1252829
  * bsc#1252833
  * bsc#1252835
  * bsc#1252838
  * bsc#1261013

  
Cross-References:

  * CVE-2025-61099
  * CVE-2025-61100
  * CVE-2025-61101
  * CVE-2025-61102
  * CVE-2025-61103
  * CVE-2025-61104
  * CVE-2025-61105
  * CVE-2025-61106
  * CVE-2025-61107
  * CVE-2026-5107

  
CVSS scores:

  * CVE-2025-61099 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-61099 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61099 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61100 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-61100 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61100 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61101 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-61101 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61101 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61102 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-61102 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61102 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61103 ( 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
  * CVE-2025-61103 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61103 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61104 ( 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
  * CVE-2025-61104 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61104 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61105 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-61105 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61105 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61106 ( 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
  * CVE-2025-61106 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61106 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61107 ( 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
  * CVE-2025-61107 ( SUSE ):  6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-61107 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/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:

  * openSUSE Leap 15.3

  
  
An update that solves 10 vulnerabilities can now be installed.

## Description:

This update for frr fixes the following issues:

  * CVE-2025-61099: NULL Pointer Dereference in FRRouting (bsc#1252838).
  * CVE-2025-61100: NULL Pointer Dereference in FRRouting (bsc#1252829).
  * CVE-2025-61101: NULL Pointer Dereference in FRRouting (bsc#1252833).
  * CVE-2025-61102: NULL Pointer Dereference in FRRouting (bsc#1252835).
  * CVE-2025-61103: NULL pointer dereference in show_vty_ext_link_lan_adj_sid()
    in ospf_ext.c (bsc#1252810).
  * CVE-2025-61104: NULL pointer dereference in show_vty_unknown_tlv() in
    ospf_ext.c (bsc#1252811).
  * CVE-2025-61105: NULL pointer dereference in show_vty_link_info() in
    ospf_ext.c (bsc#1252761).
  * CVE-2025-61106: NULL pointer dereference in show_vty_ext_pref_pref_sid() in
    ospf_ext.c (bsc#1252812).
  * CVE-2025-61107: NULL pointer dereference in show_vty_ext_pref_pref_sid() in
    ospf_ext.c (bsc#1252813).
  * CVE-2026-5107: Improper access controls via bgpd EVPN and ENCAP/VNC packet
    parsing (bsc#1261013).

## 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:

  * openSUSE Leap 15.3  
    zypper in -t patch SUSE-2026-2121=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * libfrrfpm_pb0-debuginfo-7.4-150300.4.40.1
    * frr-debuginfo-7.4-150300.4.40.1
    * libfrrsnmp0-debuginfo-7.4-150300.4.40.1
    * libfrrgrpc_pb0-debuginfo-7.4-150300.4.40.1
    * libfrr_pb0-debuginfo-7.4-150300.4.40.1
    * libfrrzmq0-debuginfo-7.4-150300.4.40.1
    * frr-7.4-150300.4.40.1
    * libfrrgrpc_pb0-7.4-150300.4.40.1
    * libfrrcares0-7.4-150300.4.40.1
    * libfrrsnmp0-7.4-150300.4.40.1
    * libfrrospfapiclient0-7.4-150300.4.40.1
    * frr-debugsource-7.4-150300.4.40.1
    * libmlag_pb0-7.4-150300.4.40.1
    * libfrrfpm_pb0-7.4-150300.4.40.1
    * libfrr0-7.4-150300.4.40.1
    * libfrr_pb0-7.4-150300.4.40.1
    * libfrr0-debuginfo-7.4-150300.4.40.1
    * libfrrcares0-debuginfo-7.4-150300.4.40.1
    * libfrrospfapiclient0-debuginfo-7.4-150300.4.40.1
    * frr-devel-7.4-150300.4.40.1
    * libmlag_pb0-debuginfo-7.4-150300.4.40.1
    * libfrrzmq0-7.4-150300.4.40.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-61099.html
  * https://www.suse.com/security/cve/CVE-2025-61100.html
  * https://www.suse.com/security/cve/CVE-2025-61101.html
  * https://www.suse.com/security/cve/CVE-2025-61102.html
  * https://www.suse.com/security/cve/CVE-2025-61103.html
  * https://www.suse.com/security/cve/CVE-2025-61104.html
  * https://www.suse.com/security/cve/CVE-2025-61105.html
  * https://www.suse.com/security/cve/CVE-2025-61106.html
  * https://www.suse.com/security/cve/CVE-2025-61107.html
  * https://www.suse.com/security/cve/CVE-2026-5107.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1252761
  * https://bugzilla.suse.com/show_bug.cgi?id=1252810
  * https://bugzilla.suse.com/show_bug.cgi?id=1252811
  * https://bugzilla.suse.com/show_bug.cgi?id=1252812
  * https://bugzilla.suse.com/show_bug.cgi?id=1252813
  * https://bugzilla.suse.com/show_bug.cgi?id=1252829
  * https://bugzilla.suse.com/show_bug.cgi?id=1252833
  * https://bugzilla.suse.com/show_bug.cgi?id=1252835
  * https://bugzilla.suse.com/show_bug.cgi?id=1252838
  * https://bugzilla.suse.com/show_bug.cgi?id=1261013



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