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CVE-2025-61106

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Date: October 27, 2025

FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_ext_pref_pref_sid function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted OSPF packet.

Severity Score

Related Resources (6)

https://github.com/FRRouting/frr/issues/19471
https://github.com/FRRouting/frr/pull/19480/commits/fdd957408605d4a1766225630aafc7e6b7c3daf3
https://nvd.nist.gov/vuln/detail/CVE-2025-61106
https://github.com/FRRouting/frr/pull/19480
https://github.com/s1awwhy/BugList/blob/main/CVE-2025-61106.md
https://www.mend.io/vulnerability-database/CVE-2025-61106

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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