CVE-2023-44443

Code execution via oversized PSP palette count

Published May 3, 2024 · Updated Sep 18, 2024

Integer overflow in GIMP before 2.10.36 allows remote attackers to execute code by inducing a user to open a crafted PSP file. The PSP plug-in's read_color_block function trusts the file-supplied palette-entry count, multiplies it by four for allocation and input, and can wrap the size before writing to memory. Exploitation requires user interaction and runs code in the context of the GIMP process; a malformed file can also crash that process.

CVSS severity7.8
High
EPSS probability93.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in GIMP before 2.10.36 allows remote attackers to execute code by inducing a user to open a crafted PSP file. The PSP plug-in's read_color_block function trusts the file-supplied palette-entry count, multiplies it by four for allocation and input, and can wrap the size before writing to memory. Exploitation requires user interaction and runs code in the context of the GIMP process; a malformed file can also crash that process.

The record

CVE
CVE-2023-44443
Published
May 3, 2024
Updated
Sep 18, 2024
Vendor
GIMP
Product
GIMP
Classifications
CWE-190, T1203, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=0 <2.10.36
  2. Affected versionversion=GIMP 2.10.34 (revision 2)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

GIMP · GIMPversion=0 <2.10.36; version=GIMP 2.10.34 (revision 2)

Published CVSS scores

7.8Zero Day InitiativeCVSS:3.0/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.

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-190Integer Overflow or Wraparound
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious 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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