CVE-2025-9820

Publication date 21 November 2025

Last updated 24 November 2025


Ubuntu priority

Description

Stack write buffer overflow

Read the notes from the security team

Why is this CVE low priority?

GnuTLS developers have rated this to be low severity

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
gnutls28 25.10 questing
Needs evaluation
25.04 plucky
Needs evaluation
24.04 LTS noble  
Needs evaluation
22.04 LTS jammy  
Needs evaluation
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation

Notes


mdeslaur

Ubuntu builds are built with stack protector, mitigating this issue

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gnutls28