Vulnerability · Published Jun 3, 2026 · Assigned by mitre
CVE-2026-37460
High 7.5
In plain English
A high-severity improper input validation in the frr package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 73.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Missing input validation in the rfapiRibBi2Ri() function (rfapi_rib.c) of FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | frr | 10.4.4-1.el10_2 | ALSA-2026:24347 |
| AlmaLinux:8 | frr | 7.5.1-25.el8_10 | ALSA-2026:49511 |
| AlmaLinux:9 | frr | 8.5.3-15.el9_8.1 | ALSA-2026:49527 |
| AlmaLinux:10 | frr-selinux | 10.4.4-1.el10_2 | ALSA-2026:24347 |
| AlmaLinux:8 | frr-selinux | 7.5.1-25.el8_10 | ALSA-2026:49511 |
| AlmaLinux:9 | frr-selinux | 8.5.3-15.el9_8.1 | ALSA-2026:49527 |
| AlmaLinux:9 | frr10 | 10.4.3-3.el9_8.2 | ALSA-2026:49607 |
| AlmaLinux:9 | frr10-selinux | 10.4.3-3.el9_8.2 | ALSA-2026:49607 |
| Debian:12 | frr | no fix listed | DEBIAN-CVE-2026-37460 |
| Debian:13 | frr | no fix listed | DEBIAN-CVE-2026-37460 |
| Debian:14 | frr | 10.6.1-1 | DEBIAN-CVE-2026-37460 |
| Rocky Linux:8 | frr | 0:7.5.1-25.el8_10 | RLSA-2026:49511 |
| Rocky Linux:9 | frr | 0:8.5.3-15.el9_8.1 | RLSA-2026:49527 |
| Rocky Linux:9 | frr10 | 0:10.4.3-3.el9_8.2 | RLSA-2026:49607 |
| Ubuntu:22.04:LTS | frr | 8.1-1ubuntu1.15 | UBUNTU-CVE-2026-37460 |
| Ubuntu:24.04:LTS | frr | 8.4.4-1.1ubuntu6.6 | UBUNTU-CVE-2026-37460 |
| Ubuntu:25.10 | frr | 10.4.1-3ubuntu1.2 | UBUNTU-CVE-2026-37460 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H