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Vulnerability · Published Jun 5, 2025 · Assigned by VulDB

CVE-2025-5646Radare2 radiff2 pal.c r_cons_rainbow_free memory corruption

Low 2.5

In plain English

A low-severity memory corruption 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 15% of all known vulnerabilities).

Severity (CVSS 3.1)2.5Low
Exploit odds (30 days)0.2%top 85.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Radare2 5.9.9 and classified as problematic. This vulnerability affects the function r_cons_rainbow_free in the library /libr/cons/pal.c of the component radiff2. The manipulation of the argument -T leads to memory corruption. It is possible to launch the attack on the local host. 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 identified as 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-2025-5646
Ubuntu:26.04:LTSradare2no fix listedUBUNTU-CVE-2025-5646
Ubuntu:26.10radare2no fix listedUBUNTU-CVE-2025-5646

Affected products (as reported)

VendorProductVersions
n/a Radare2 5.9.9

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

References