What is CVE-2026-40527?

CVE-2026-40527 is a high-severity vulnerability in Radare Radare2, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-04-17.

How severe is CVE-2026-40527?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Radare Radare2

CVE-2026-40527

radare2 prior to commit bc5a890 contains a command injection vulnerability in the afsv/afsvj command path where crafted ELF binaries can embed malicious r2 command sequences as DWARF DW_TAG_formal_parameter names. Attackers can craft a bin…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (10.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Radare Radare2
Radareorg Radare2 — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

disclosure@vulncheck.com (issue-tracking, Exploit, Patch, Issue Tracking)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-40527?: CVE-2026-40527 is a high-severity vulnerability in Radare Radare2, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-04-17.
How severe is CVE-2026-40527?: High severity. CVSS v3 base score is 7.8 out of 10.