CVE-2025-61107

Daemon crash via unchecked VTY context

Published Oct 28, 2025 · Updated Oct 28, 2025

NULL pointer dereference in FRRouting 4.0 through 10.4.1 allows remote attackers to crash ospfd with a crafted OSPF LSA Update packet. With detailed OSPF packet debugging enabled, opaque-LSA display handlers pass an unavailable VTY context to vty_out instead of logging through zlog. The attacker must be able to deliver an OSPF update to a router using this non-default debugging configuration; the reported impact is loss of the OSPF daemon.

CVSS severity7.5
High
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in FRRouting 4.0 through 10.4.1 allows remote attackers to crash ospfd with a crafted OSPF LSA Update packet. With detailed OSPF packet debugging enabled, opaque-LSA display handlers pass an unavailable VTY context to vty_out instead of logging through zlog. The attacker must be able to deliver an OSPF update to a router using this non-default debugging configuration; the reported impact is loss of the OSPF daemon.

The record

CVE
CVE-2025-61107
Published
Oct 28, 2025
Updated
Oct 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.5SUSECVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
6.0SUSECVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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