CVE-2022-0712

Local crash via unchecked symbol pointer

Published Feb 22, 2022 · Updated Aug 2, 2024

NULL pointer dereference in radare2 before 5.6.4 allows local users to crash the tool by opening a crafted binary file. In libr/bin/p/bin_symbols.c, the symbols() routine dereferences a symbol pointer without checking for null, and the upstream fix adds a guard before accessing sym->paddr. Exploitation requires local execution and user interaction to make radare2 process attacker-controlled binary data, resulting in a denial of service through process crash.

CVSS severity5.5
Medium
EPSS probability0.95%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in radare2 before 5.6.4 allows local users to crash the tool by opening a crafted binary file. In libr/bin/p/bin_symbols.c, the symbols() routine dereferences a symbol pointer without checking for null, and the upstream fix adds a guard before accessing sym->paddr. Exploitation requires local execution and user interaction to make radare2 process attacker-controlled binary data, resulting in a denial of service through process crash.

The record

CVE
CVE-2022-0712
Published
Feb 22, 2022
Updated
Aug 2, 2024
Vendor
radareorg
Product
radare2
Classifications
CWE-476, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=unspecified <5.6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

radareorg · radare2version=unspecified <5.6.4

Published CVSS scores

5.9huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

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No observations available

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

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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