--- title: "CVE-2025-5643\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-2025-5643?format=md keywords: index, follow --- # CVE-2025-5643 Publication date 5 June 2025 Last updated 10 July 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) ## Cvss 3 Severity Score **2.5 · Low** [Score breakdown](https://ubuntu.com/security/CVE-2025-5643?format=md#impact-score) Toggle side navigation ## Description A vulnerability classified as problematic was found in Radare2 5.9.9. Affected by this vulnerability is the function cons\_stack\_load in the library /libr/cons/cons.c of the component radiff2. The manipulation of the argument -T leads to memory corruption. An attack has to be approached locally. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The patch is named 5705d99cc1f23f36f9a84aab26d1724010b97798. It is recommended to apply a patch to fix this issue. The documentation explains that the parameter -T is experimental and "crashy". Further analysis has shown "the race is not a real problem unless you use asan". A new warning has been added. [Read the notes from the security team](https://ubuntu.com/security/CVE-2025-5643?format=md#notes) ## 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 | | 25.04 plucky | Ignored end of life, was needs-triage | | 24.10 oracular | 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) ## Notes --- ### [rodrigo-zaiden](https://launchpad.net/~rodrigo-zaiden) there is no real fix for this. commit 5705d99cc1f23f36f9a84aab26d1724010b97798 is adding a warning log about the risk of using '-T' ## Severity score breakdown CVSS version: CVSS v4.0 [CVSS v4.0](https://ubuntu.com/security/CVE-2025-5643?format=md) [CVSS v3.0](https://ubuntu.com/security/CVE-2025-5643?format=md) **Base score** 2.0 · Low * Base metrics | Parameter | Value | | --- | --- | | Attack vector | Local | | Attack complexity | High | | 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 | 2.0 · Low | | Base + Threat score | - | | Base + Environmental score | - | | Base + Threat + Environmental score | - | **Vector:** CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-5643) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2025-5643) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2025-5643) * [Debian](https://security-tracker.debian.org/tracker/CVE-2025-5643) ### Other references * * * * * * * *