CVE-2025-61099: frrouting Null Dereference

Description

FRRouting/frr from v2.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the opaque_info_detail function at ospf_opaque.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted LS Update packet.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
frrouting	frrouting	2.0 — 10.4.1

References

Advisories & Patches

https://github.com/FRRouting/frr/pull/19480/commits/0042fbe8ca5aba866b4f0d166e54066bba5ab14e

Exploits

https://github.com/FRRouting/frr/issues/19471

Other References

https://github.com/FRRouting/frr/pull/19480 https://github.com/s1awwhy/BugList/blob/main/CVE-2025-61099.md

Frequently Asked Questions

What is CVE-2025-61099? +

FRRouting/frr from v2.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the opaque_info_detail function at ospf_opaque.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted LS Update packet. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-61099? +

CVE-2025-61099 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-61099? +

CVE-2025-61099 affects products from frrouting, specifically: frrouting. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-61099? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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