Vulnerability · Published Oct 28, 2025 · Assigned by mitre
CVE-2025-61106
High 7.5
In plain English
A high-severity null pointer dereference in the frr package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | frr | 8.4.4-1.1~deb12u2 | DEBIAN-CVE-2025-61106 |
| Debian:13 | frr | 10.3-3+deb13u1 | DEBIAN-CVE-2025-61106 |
| Debian:14 | frr | 10.5.1-3 | DEBIAN-CVE-2025-61106 |
| Ubuntu:22.04:LTS | frr | 8.1-1ubuntu1.14 | USN-8046-1 |
| Ubuntu:22.04:LTS | frr | 8.1-1ubuntu1.14 | UBUNTU-CVE-2025-61106 |
| Ubuntu:24.04:LTS | frr | 8.4.4-1.1ubuntu6.5 | USN-8046-1 |
| Ubuntu:24.04:LTS | frr | 8.4.4-1.1ubuntu6.5 | UBUNTU-CVE-2025-61106 |
| Ubuntu:25.10 | frr | 10.4.1-3ubuntu1.1 | UBUNTU-CVE-2025-61106 |
| Ubuntu:25.10 | frr | 10.4.1-3ubuntu1.1 | USN-8046-1 |
| Ubuntu:26.04:LTS | frr | 10.5.1-1ubuntu2 | UBUNTU-CVE-2025-61106 |
Affected products (as reported)
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H