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SUSE frr Important Access Control Issues Fix Vulnerability 2026-2457-1

suse
Calendar Grey June 18, 2026
Dist Suse Esm H88
Important SUSE update for frr addressing multiple vulnerabilities. Immediate action is required to enhance security.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for frr fixes the following issue: * 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: * Server Applications Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-2457=1 ## Package List:

Topics%20covered

Topics Covered

security advisory denial of service SuSE important access controls frr

References

* bsc#1261013

* bsc#1263859

* bsc#1263863

* bsc#1263974

Cross-

* 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2457-1
Release Date: 2026-06-18T15:54:17Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important access controls frr

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