cve 2025 61100

About this tag
CVE-2025-61100 is a denial-of-service vulnerability in FRRouting (FRR) affecting the OSPF daemon. It involves a NULL pointer dereference in the Opaque LSA dump function (ospf_opaque_lsa_dump) triggered by specially crafted OSPF Link State Advertisements. The flaw is exploitable when OSPF packet debugging is enabled to dump full send/receive details. This can crash the ospfd process, disrupting OSPF routing. The vulnerability is documented in FRR's security advisories, and users should apply patches or workarounds to mitigate risk.

  1. CVE-2025-61100: FRRouting OSPF Opaque LSA Dump NULL Pointer DoS

    FRRouting has a newly documented vulnerability — tracked as CVE-2025-61100 — that allows specially crafted OSPF Link State Advertisements (LSAs) to trigger a NULL pointer dereference in the OSPF daemon (ospfd), causing a denial-of-service (DoS) condition for affected FRR installations. The fault...
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