NULL Pointer Dereference Vulnerability in FRRouting Product by FRRouting
CVE-2025-61104

7.5HIGH

Key Information:

Vendor

FRRouting

Status
FRRouting
Vendor
CVE Published:
28 October 2025

What is CVE-2025-61104?

A vulnerability has been identified in FRRouting versions from 4.0 to 10.4.1, allowing attackers to exploit a NULL pointer dereference within the 'show_vty_unknown_tlv' function located in ospf_ext.c. This weakness can be triggered through specially crafted OSPF packets, leading to Denial of Service (DoS) conditions, impacting the availability of the service.

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References

https://github.com/FRRouting/frr/pull/19480
https://github.com/FRRouting/frr/issues/19471
https://github.com/FRRouting/frr/pull/19480/commits/fdd95...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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