EUVD-2026-56836
GHSA-99jh-r6f5-x43g
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-parsing flaw triggered locally on victim open; attacker needs no system privileges to craft payload; mandatory user interaction confirmed by file-open requirement.
Primary rating from Vendor (adobe).
CVSS VectorVendor: adobe
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
2DescriptionCVE.org
Lightroom Classic is affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
AnalysisAI
Arbitrary code execution in Adobe Lightroom Classic versions up to and including 15.4.1 is triggered when a victim opens a specially crafted malicious file, exploiting an out-of-bounds write flaw in the application's file parsing logic. The vulnerability executes at the privilege level of the current user, meaning full compromise of user-accessible data and processes without requiring elevation. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim opens a malicious file directly in Adobe Lightroom Classic version 15.4.1 or earlier on a host where the application is installed. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score reflects a high-impact but user-interaction-dependent local vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a malicious image or metadata file - such as a RAW, DNG, or XMP file - engineered to trigger the out-of-bounds write when parsed by Lightroom Classic. The file is delivered to a target photographer or designer via email attachment, download link, or shared project folder; when the victim opens the file in an affected version of Lightroom Classic, the parser writes out-of-bounds, corrupting heap memory in a manner that redirects execution to attacker-controlled code running as the current user. … |
| Remediation | The primary fix is to upgrade Adobe Lightroom Classic to version 15.5, which is confirmed as the patched release per Adobe APSB26-94 (https://helpx.adobe.com/security/products/lightroom/apsb26-94.html) and the EUVD affected-versions data. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory all Adobe Lightroom Classic installations in your organization, identify affected versions (15.4.1 and earlier), and issue guidance to users to avoid opening files from untrusted sources and to verify file integrity before opening. …
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Unsafe deserialization of untrusted data in Adobe Lightroom Classic (versions ≤15.4.1) enables arbitrary code execution
Path traversal in Adobe Lightroom Classic versions up to 15.4.1 allows an attacker to read arbitrary files from the vict
Arbitrary code execution in Adobe Lightroom Classic versions up to and including 15.4.1 is achievable by tricking a vict
Out-of-bounds write in Adobe Lightroom Classic versions up to and including 15.4.1 enables arbitrary code execution in t
Out-of-bounds write in Adobe Lightroom Classic allows arbitrary code execution under the context of the logged-in user w
Out-of-bounds write in Adobe Lightroom Classic versions up to 15.4.1 enables arbitrary code execution in the security co
Out-of-bounds write in Adobe Lightroom Classic versions up to 15.4.1 enables arbitrary code execution in the context of
Out-of-bounds write in Adobe Lightroom Classic versions up to 15.4.1 enables arbitrary code execution in the context of
Out-of-bounds write in Adobe Lightroom Classic versions up to and including 15.4.1 allows arbitrary code execution in th
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Memory Corruption
View allShare
External POC / Exploit Code
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