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CVE-2026-40527

Radare Radare2 command injection

7.8 HIGHPublic exploitEPSS 1.45%
  1. Published17 Apr 2026

Description

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 binary with shell commands in DWARF parameter names that execute when radare2 analyzes the binary with aaa and subsequently runs afsvj, allowing arbitrary shell command execution through the unsanitized parameter interpolation in the pfq command string.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Radare Radare2< 6.1.6

Remediation

Fixed in
Radare Radare2≥ 6.1.6

References

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Frequently asked

Is CVE-2026-40527 being actively exploited?

CVE-2026-40527 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.45%.

How severe is CVE-2026-40527?

CVE-2026-40527 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 1.45% probability of exploitation.

Which products are affected by CVE-2026-40527?

Affected products include Radare Radare2.

How do I fix CVE-2026-40527?

Upgrade affected software to a fixed version, for example Radare Radare2 6.1.6 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40527 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.