CVE-2022-0676Public exploit

Process crash via unchecked dyldcache mapping count

Published Feb 22, 2022 · Updated Aug 2, 2024

Heap-based buffer overflow in radare2 before 5.6.4 allows context-dependent attackers to crash the process with a crafted dyld cache. The dyldcache parser passes an untrusted header mapping count to va2pa even when fewer mapping entries were loaded, causing out-of-bounds heap access. Exploitation requires a user to open the malicious cache locally; the published reproducer demonstrates a crash, not code execution.

CVSS severity7.8
High
EPSS probability1.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in radare2 before 5.6.4 allows context-dependent attackers to crash the process with a crafted dyld cache. The dyldcache parser passes an untrusted header mapping count to va2pa even when fewer mapping entries were loaded, causing out-of-bounds heap access. Exploitation requires a user to open the malicious cache locally; the published reproducer demonstrates a crash, not code execution.

The record

CVE
CVE-2022-0676
Published
Feb 22, 2022
Updated
Aug 2, 2024
Vendor
radareorg
Product
radare2
Classifications
CWE-122, T1204.002
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

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
7.8huntr.devCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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 exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1204.002User Execution: Malicious File

Public exploit references

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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