---
title: "CVE-2026-48831\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-2026-48831?format=md
keywords: index, follow
---

# CVE-2026-48831

Publication date 24 May 2026

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

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

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## Description

Wine ships a .desktop file that registers itself as a MIME handler for EXE
files and several other Windows executable file types. In some
configurations, handling of an EXE file causes that file to be blindly
executed with the permissions of the invoker. This allows escaping Flatpak
and Snap sandboxes, because MIME handlers are not intended for use by code
interpreters and loaders. NOTE: some parties feel that this is not a bug to
be addressed in Wine, because there is no known solution that avoids a
severe loss of usability (Wine could be a binfmt-misc handler, but
binfmt-misc does not exist on all platforms supported by Wine).

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| wine | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | 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)

## Severity score breakdown

CVSS version:
CVSS v4.0

**Base score**

7.3 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Attack requirements | Present |
  | Privileges required | None |
  | User interaction | Passive |
  | Vulnerable system - Confidentiality impact | High |
  | Vulnerable system - Integrity impact | High |
  | Vulnerable system - Availability impact | High |
  | Subsequent system - Confidentiality impact | None |
  | Subsequent system - Integrity impact | None |
  | Subsequent system - Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.3 · High |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/AU:N/V:D/U:Clear

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-48831)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-48831)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-48831)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-48831)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-48831>
* <https://bugs.winehq.org/show_bug.cgi?id=59767>
* <https://www.openwall.com/lists/oss-security/2026/05/19/1>
* <https://www.openwall.com/lists/oss-security/2026/05/25/1>
* <http://www.openwall.com/lists/oss-security/2026/05/25/1>