---
title: "CVE-2026-55869\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-2026-55869?format=md
keywords: index, follow
---

# CVE-2026-55869

Publication date 22 July 2026

Last updated 15 September 2026

---

Ubuntu priority

**Medium**

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

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## Description

[Heap-Based Buffer Overflow in KMREQ Handling]

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| srt | 26.04 LTS resolute | Fixed 1.5.4-3ubuntu0.1~esm1  Ubuntu Pro |
| 24.04 LTS noble | Fixed 1.5.3-1ubuntu0.1~esm1  Ubuntu Pro |
| 22.04 LTS jammy | Fixed 1.4.4-4ubuntu0.1~esm1  Ubuntu Pro |
| 20.04 LTS focal | Fixed 1.4.0-1ubuntu0.1~esm1  Ubuntu Pro |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

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## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-55869)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-55869)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-55869)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-55869)

### Related Ubuntu Security Notices (USN)

+ [USN-8764-1](https://usn.ubuntu.com/USN-8764-1)
+ SRT vulnerabilities
+ 15 September 2026

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-55869>
* <https://github.com/Haivision/srt/security/advisories/GHSA-6xg9-784j-24rm>
* <https://github.com/Haivision/srt/pull/3345>