---
title: "CVE-2026-4174\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-2026-4174?format=md
keywords: index, follow
---

# CVE-2026-4174

Publication date 16 March 2026

Last updated 10 July 2026

---

Ubuntu priority

**Medium**

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

## Cvss 3 Severity Score

**3.3 · Low**

[Score breakdown](https://ubuntu.com/security/CVE-2026-4174?format=md#impact-score)

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## Description

A vulnerability has been found in Radare2 5.9.9. This issue affects the
function walk\_exports\_trie of the file libr/bin/format/mach0/mach0.c of the
component Mach-O File Parser. Such manipulation leads to resource
consumption. The attack can only be performed from a local environment. The
exploit has been disclosed to the public and may be used. The existence of
this vulnerability is still disputed at present. Upgrading to version 6.1.2
is capable of addressing this issue. The name of the patch is
4371ae84c99c46b48cb21badbbef06b30757aba0. You should upgrade the affected
component. The code maintainer states that, "[he] wont consider this bug a
DoS".

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| radare2 | 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 | 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)

## Severity score breakdown

CVSS version:

CVSS v4.0

[CVSS v4.0](https://ubuntu.com/security/CVE-2026-4174?format=md)
[CVSS v3.0](https://ubuntu.com/security/CVE-2026-4174?format=md)

**Base score**

1.9 · Low

* Base metrics

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

  | Parameter | Value |
  | --- | --- |
  | Base score | 1.9 · Low |
  | Base + Threat score | - |
  | Base + Environmental score | - |
  | Base + Threat + Environmental score | - |

**Vector:** CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-4174)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-4174)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-4174)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-4174)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-4174>
* <https://github.com/radareorg/radare2/issues/25482>