Integer overflow in radare2 - #VU142706

 

Integer overflow in radare2 - #VU142706

Published: August 15, 2026


Vulnerability identifier: #VU142706
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to integer overflow in the CPython bytecode (.pyc) marshal parser when parsing a specially crafted .pyc file. A remote attacker can provide a .pyc file with an attacker-controlled length value to cause a denial of service.

User interaction is required to open or inspect the crafted file, including with r2 or rabin2.


Affected software

radare2

Remediation

Install security update from vendor's website.

radare2 - update to 6.2.0

External References

Related Security Bulletins