CVE-2026-48397

Code execution via malicious-file deserialization

Published Aug 11, 2026 · Updated Aug 11, 2026

Deserialization of untrusted data in Adobe Lightroom Classic 15.4 and earlier allows attackers to execute code through a malicious file. Adobe identifies unsafe deserialization but has not disclosed the affected file parser, data format, or operation performed on serialized input. Exploitation requires a local user to open the crafted file, after which code runs in that user's context and can cross a security scope boundary.

CVSS severity8.6
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Adobe Lightroom Classic 15.4 and earlier allows attackers to execute code through a malicious file. Adobe identifies unsafe deserialization but has not disclosed the affected file parser, data format, or operation performed on serialized input. Exploitation requires a local user to open the crafted file, after which code runs in that user's context and can cross a security scope boundary.

The record

CVE
CVE-2026-48397
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Adobe
Product
Lightroom Classic
Classifications
CWE-502, T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=15.4, 15.4.1, 15.3, 15.3.1, 15.2, 15.2.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Adobe · Lightroom Classicversion=0 <=15.4, 15.4.1, 15.3, 15.3.1, 15.2, 15.2.1

Published CVSS scores

8.6Adobe Systems IncorporatedCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/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-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution

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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