EUVD-2026-56837
GHSA-j3q8-4mqq-xmmg
Severity by source
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
File-triggered local attack requires victim interaction (UI:R, AV:L); attacker needs no privileges (PR:N); full process compromise gives C:H/I:H/A:H with no scope change.
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
Out-of-bounds write in Adobe Lightroom Classic allows arbitrary code execution under the context of the logged-in user when a victim opens a specially crafted file. All releases from 15.2 through 15.4.1 are confirmed affected; Adobe has released version 15.5 as the fix per advisory APSB26-94. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim actively opens a malicious file within Lightroom Classic - this is the sole and mandatory prerequisite encoded in UI:R. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.8 score is well-calibrated: AV:L correctly reflects that exploitation is file-triggered rather than purely network-driven, and UI:R captures the mandatory social engineering step of getting a victim to open a malicious file. … 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 designed to trigger an out-of-bounds write in Lightroom Classic's parser, then delivers it to a target photographer or designer via email, a client file-sharing portal, or a stock image platform. When the victim opens the file in Lightroom Classic (versions 15.2-15.4.1), the memory corruption is triggered, allowing the attacker to gain code execution under the victim's user account. … |
| Remediation | The primary remediation is to upgrade Adobe Lightroom Classic to version 15.5, which Adobe has confirmed as the patched release per APSB26-94 (https://helpx.adobe.com/security/products/lightroom/apsb26-94.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Lightroom Classic installations to identify affected versions (15.2-15.4.1), prioritizing creative and photography departments. …
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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
Arbitrary code execution in Adobe Lightroom Classic versions up to and including 15.4.1 is triggered when a victim opens
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
Lightroom Desktop versions 8.2 and earlier are affected by an out-of-bounds write vulnerability that could result in arb
Arbitrary code execution in Adobe Lightroom Desktop 15.1 and earlier via an out-of-bounds write vulnerability when users
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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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