Denial of Service Vulnerability in FRRouting from Various Versions
CVE-2025-61107

7.5HIGH

Key Information:

Vendor

FRRouting

Status
FRRouting
Vendor
CVE Published:
28 October 2025

What is CVE-2025-61107?

A vulnerability in FRRouting versions 4.0 to 10.4.1 involves a NULL pointer dereference triggered by the show_vty_ext_pref_pref_sid function in ospf_ext.c. This flaw can enable attackers to launch a Denial of Service (DoS) by sending a specially crafted LSA Update packet, potentially disrupting network operations.

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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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