---
title: "CVE-2026-37460\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-37460?format=md
keywords: index, follow
---

# CVE-2026-37460

Publication date 3 June 2026

Last updated 18 June 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.5 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2026-37460?format=md#impact-score)

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## 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.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2026-37460?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| frr | 26.04 LTS resolute | Not affected |
| 25.10 questing | Fixed 10.4.1-3ubuntu1.2 |
| 24.04 LTS noble | Fixed 8.4.4-1.1ubuntu6.6 |
| 22.04 LTS jammy | Fixed 8.1-1ubuntu1.15 |
| 20.04 LTS focal | Fixed 7.2.1-1ubuntu0.2+esm4  Ubuntu Pro |
| quagga | 26.04 LTS resolute | Not in release |
| 25.10 questing | Not in release |
| 24.04 LTS noble | Not in release |
| 22.04 LTS jammy | Not in release |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2026-37460?format=md#patch-details)

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## Notes

---

### [sbeattie](https://launchpad.net/~sbeattie)

the quagga project was renamed to frr

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

This is the same commit as CVE-2026-5107 and was included in
USN-8175-1

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| frr | * Upstream:   [36f4098](https://github.com/FRRouting/frr/commit/36f4098738627d724a72d37ef660a5d8eb1e8020) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.5 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | None |
  | Integrity impact | None |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.5 · High |
  | Exploitability score | - |
  | Impact score | - |

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

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-37460)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-37460)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-37460)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-37460)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-37460>