EUVD-2026-63450
GHSA-282j-q335-6rxf
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Local vector because exploitation requires victim to open a file; no attacker privileges needed; full confidentiality, integrity, and availability impact on the GIMP process.
Primary rating from Vendor (zdi).
CVSS VectorVendor: zdi
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
GIMP PSD File Parsing Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the parsing of PSD files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29395.
AnalysisAI
Remote code execution in GIMP 3.2.2 is triggered when a victim opens a specially crafted PSD file, exploiting an integer overflow in the PSD parser that occurs before buffer allocation. Tracked by Zero Day Initiative as ZDI-CAN-29395 and rated CVSS 7.8, the flaw allows an unauthenticated remote attacker to execute arbitrary code within the GIMP process context after inducing the target to open a malicious file. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The target must actively open the malicious PSD file in GIMP 3.2.2 - no special GIMP configuration, plugin, or non-default feature needs to be enabled, as PSD file parsing is built-in core functionality. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score is consistent with a client-side code execution vulnerability: AV:L reflects the file-open exploitation mechanism, AC:L indicates no race condition or special configuration is required, PR:N confirms the attacker needs no account or credential on the target system, and UI:R captures the mandatory victim interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker engineers a malicious PSD file crafted with dimension or channel count values designed to trigger the integer overflow in GIMP's PSD parsing routine. The file is delivered to a target graphic designer or photographer via a phishing email, malicious download site, or poisoned asset library, and when the victim opens it in GIMP 3.2.2, the arithmetic overflow produces an undersized heap allocation, heap corruption follows, and the attacker achieves code execution running with the victim's user-level privileges. |
| Remediation | An upstream fix has been submitted via GNOME GitLab merge request 2772 (https://gitlab.gnome.org/GNOME/gimp/-/merge_requests/2772); however, a formally released patched GIMP version is not confirmed from available intelligence data - this should be treated as an upstream fix available via commit rather than a shipped release. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, communicate security advisory to all GIMP users and restrict opening of PSD files from external or untrusted sources. …
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Same weakness CWE-190 – Integer Overflow or Wraparound
View allSame technique Integer Overflow
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External POC / Exploit Code
Leaving vuln.today