Buffer overflow in Radare Radare2
CVE-2025-5644
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.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (9.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.5 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Radare Radare2 — versions 5.9.9
- N/a Radare2 — versions 5.9.9
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (issue-tracking, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (Exploit, exploit)
- cna@vuldb.com (Patch, patch)
Frequently asked questions
- What is CVE-2025-5644?
- CVE-2025-5644 is a low-severity vulnerability in Radare Radare2, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 2.5/10. Published 2025-06-05.
- How severe is CVE-2025-5644?
- Low severity. CVSS v3 base score is 2.5 out of 10.