CVE-2025-61099: Null Pointer Dereference
Published Oct 27, 2025
·Updated
FRRouting/frr from v2.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the opaqueinfodetail function at ospfopaque.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted LS Update packet.
Affected Software
8 affected componentsFixes available
Frrouting FRR>=2.0<=10.4.1
Frrouting FRRouting>=2.0<=10.4.1
Microsoft azl3 frr 9.1.1-3
Microsoft cbl2 frr 8.5.5-3
Microsoft azl3 frr 9.1.1-5
Microsoft cbl2 frr 8.5.5-4
Microsoft cbl2 frr 8.5.5-5
Microsoft azl3 frr 9.1.1-4
Remediation
Event History
Oct 27, 2025
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·07:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Nov 5, 2025
Data Sourced
via Microsoft·01:01 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·01:01 AM
Affected Software
Updated
via Microsoft·09:01 AM
Affected Software
Updated
via Microsoft·09:01 AM
DescriptionSeverity
Frequently Asked Questions
1
What is the severity of CVE-2025-61099?
CVE-2025-61099 is classified as a high severity vulnerability leading to Denial of Service.
2
How do I fix CVE-2025-61099?
To mitigate CVE-2025-61099, update your FRRouting FRR software to version 10.4.2 or later.
3
What is the nature of CVE-2025-61099?
CVE-2025-61099 involves a NULL pointer dereference vulnerability in the opaque_info_detail function.
4
Which versions of FRRouting FRR are affected by CVE-2025-61099?
FRRouting FRR versions from 2.0 through 10.4.1 are affected by CVE-2025-61099.
5
What can an attacker achieve with CVE-2025-61099?
An attacker can exploit CVE-2025-61099 to cause a Denial of Service through crafted LS Update packets.