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