Use-After-Free Vulnerability in Radare2 via radiff2 Component
CVE-2025-5644

2LOW

Key Information:

Vendor

Radareorg

Status
Radare2
Vendor
CVE Published:
5 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-5644?

A problematic use-after-free vulnerability has been identified in Radare2 version 5.9.9 affecting the radiff2 component. This issue is triggered by manipulating the -T argument within the function r_cons_flush. Although the vulnerability requires local access to exploit, it has been characterized by a high complexity, making successful exploitation challenging. Preliminary analysis suggests that the parameter -T is considered experimental and can lead to instability ('crashy'). A patch has been issued to address this issue, and further investigation into its implications is ongoing. Users are strongly advised to apply the provided patch to mitigate potential risks.

Affected Version(s)

Radare2 5.9.9

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-5644 - Proof of Concept

References

https://vuldb.com/?id.311132
vdb-entrytechnical-description
https://vuldb.com/?ctiid.311132
signaturepermissions-required
https://vuldb.com/?submit.586921
third-party-advisory

CVSS V4

Score:
2
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

rootsec (VulDB User)
.
CVE-2025-5644 : Use-After-Free Vulnerability in Radare2 via radiff2 Component