CVE-2022-0173

Process crash via stale I/O bank tree pointer

Published Jan 11, 2022 · Updated Aug 2, 2024

Use-after-free in radare2 before 5.6.0 allows local users to crash the analysis process by opening a crafted binary file. r_io_bank_map_add_top continued red-black-tree iteration after a failed submap deletion, leaving stale node state available for dereference. Exploitation requires radare2 to process attacker-controlled input, and the publicly demonstrated consequence is process termination.

CVSS severity9.6
Critical
EPSS probability1.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in radare2 before 5.6.0 allows local users to crash the analysis process by opening a crafted binary file. r_io_bank_map_add_top continued red-black-tree iteration after a failed submap deletion, leaving stale node state available for dereference. Exploitation requires radare2 to process attacker-controlled input, and the publicly demonstrated consequence is process termination.

The record

CVE
CVE-2022-0173
Published
Jan 11, 2022
Updated
Aug 2, 2024
Vendor
radareorg
Product
radare2
Classifications
CWE-125, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 11, 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 <Will be fixed in the upcoming r2-5.6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

radareorg · radare2version=unspecified <Will be fixed in the upcoming r2-5.6.0

Published CVSS scores

9.6huntr.dev CNACVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
4.3NVDAV:N/AC:M/Au:N/C:N/I:N/A:P
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.

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1204.002Malicious File

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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