CVE-2024-46276Public exploit

Process crash via unchecked chunk-name comparison

Published Oct 1, 2024 · Updated Mar 14, 2025

Heap buffer overflow in cute_png 1.05 allows context-dependent attackers to crash an application by supplying a crafted PNG file. The cp_chunk function performs a four-byte memcmp at the current input pointer without first ensuring that four bytes remain in the allocated PNG buffer. Exploitation requires an application using the library to process the file; the demonstrated consequence is an out-of-bounds read followed by process termination.

CVSS severity7.8
High
EPSS probability0.46%
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 cute_png 1.05 allows context-dependent attackers to crash an application by supplying a crafted PNG file. The cp_chunk function performs a four-byte memcmp at the current input pointer without first ensuring that four bytes remain in the allocated PNG buffer. Exploitation requires an application using the library to process the file; the demonstrated consequence is an out-of-bounds read followed by process termination.

The record

CVE
CVE-2024-46276
Published
Oct 1, 2024
Updated
Mar 14, 2025
Vendor
Randy Gaul
Product
cute_png
Classifications
CWE-787, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 14, 2025Record 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=1.05

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Randy Gaul · cute_pngversion=1.05

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.8NVDCVSS: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-787Out-of-bounds Write
T1203Exploitation for Client Execution

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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