PT-2025-44179 · Unknown+4 · Frrouting Frr+4

Published 2025-10-28 · Updated 2026-04-17 · CVE-2025-61103

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions FRRouting/frr versions 4.0 through 10.4.1

Description A flaw exists in FRRouting/frr that involves a NULL pointer dereference within the show vty ext link lan adj sid function, located in the ospf ext.c file. This issue can be triggered by a specially crafted OSPF packet, potentially leading to a Denial of Service (DoS).

Recommendations Update to a version later than 10.4.1.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

AZL-69440

AZL-69461

BDU:2026-07207

CVE-2025-61103

OPENSUSE-SU-2026:20682-1

SUSE-SU-2026:0665-1

SUSE-SU-2026:1057-1

SUSE-SU-2026:1063-1

SUSE-SU-2026:21550-1

USN-8046-1

Affected Products

Debian

Frrouting Frr

Linuxmint

Red Os

Ubuntu

References · 55

• 🔥 https://github.com/FRRouting/frr/issues/19471 · Exploit
• 🔥 https://github.com/s1awwhy/BugList/blob/main/CVE-2025-61103.md · Exploit
• https://github.com/FRRouting/frr/pull/19480/commits/fdd957408605d4a1766225630aafc7e6b7c3daf3 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:1063-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-61102 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-61103 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-69461 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-61103 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-61103 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-61107 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-8046-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0665-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-61103 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-61100 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-61101 · Vendor Advisory