CVE-2023-1605Public exploit

Process crash via null COFF symbols dereference

Published Mar 23, 2023 · Updated Feb 25, 2025

NULL-pointer dereference in radare2 before 5.8.6 allows attackers to crash the process by opening a crafted COFF binary. The COFF patch_relocs function loops over the header-declared symbol count and dereferences bin->symbols even when parsing left that pointer null. Opening the malicious file is required, and the resulting segmentation fault terminates only the radare2 process.

CVSS severity7.5
High
EPSS probability0.99%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

NULL-pointer dereference in radare2 before 5.8.6 allows attackers to crash the process by opening a crafted COFF binary. The COFF patch_relocs function loops over the header-declared symbol count and dereferences bin->symbols even when parsing left that pointer null. Opening the malicious file is required, and the resulting segmentation fault terminates only the radare2 process.

The record

CVE
CVE-2023-1605
Published
Mar 23, 2023
Updated
Feb 25, 2025
Vendor
radareorg
Product
radare2
Classifications
CWE-400, T1204.002, T1499.004
Attack vector
Unavailable
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <5.8.6

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesunauthenticated

What is affected?

radareorg · radare2version=unspecified <5.8.6

Published CVSS scores

7.5huntr.devCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1204.002Malicious File
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo