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Vulnerability · Published Jun 5, 2025 · Assigned by VulDB

CVE-2025-5644Radare2 radiff2 cons.c r_cons_flush use after free

Low 2.5

In plain English

A low-severity use-after-free in Radare2. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).

Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.2%top 84.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as problematic, has been found in Radare2 5.9.9. Affected by this issue is the function r_cons_flush in the library /libr/cons/cons.c of the component radiff2. The manipulation of the argument -T leads to use after free. Local access is required to approach this attack. The complexity of an attack is rather high. The exploitation is known 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 name of the patch is 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:25.10radare2no fix listedUBUNTU-CVE-2025-5644
Ubuntu:26.04:LTSradare2no fix listedUBUNTU-CVE-2025-5644
Ubuntu:26.10radare2no fix listedUBUNTU-CVE-2025-5644

Affected products (as reported)

VendorProductVersions
n/a Radare2 5.9.9

Weakness: CWE-416, CWE-119 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

References