CVE-2024-31670Network attack vector

CLI crash via unchecked dyld mapping count

Published Dec 12, 2024 · Updated Dec 13, 2024

Heap buffer overflow in Rizin before 0.6.3 allows attackers to crash the CLI by supplying a crafted Apple dyld cache file. In librz/bin/format/mach0/dyldcache.c, read_cache_accel passes the untrusted header mappingCount to va2pa even when fewer map entries were allocated, causing access beyond the maps array. Triggering the flaw requires Rizin to parse the crafted cache; the upstream patch documents a crash and does not establish code execution.

CVSS severity6.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in Rizin before 0.6.3 allows attackers to crash the CLI by supplying a crafted Apple dyld cache file. In librz/bin/format/mach0/dyldcache.c, read_cache_accel passes the untrusted header mappingCount to va2pa even when fewer map entries were allocated, causing access beyond the maps array. Triggering the flaw requires Rizin to parse the crafted cache; the upstream patch documents a crash and does not establish code execution.

The record

CVE
CVE-2024-31670
Published
Dec 12, 2024
Updated
Dec 13, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Dec 13, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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