HOMEVULNERABILITIESCVE-2026-40527
HIGH

CVE-2026-40527

CWE-78Published: April 17, 2026· Updated: Apr 20, 2026

7.8
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:8.5th

Official 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.

NVD Source

Technical Analysis

CVE-2026-40527 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (3)

Quick Facts

CVE IDCVE-2026-40527
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-78
CISA KEVNo
EPSS (30d)0.03%
PublishedApr 17, 2026

Related CVEs (CWE-78)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-40527 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.