CVE-2021-40776: Adobe Lightroom Classic DLL Hijacking Local Privilege Escalation Vulnerability

Severity: medium (CVSS 6.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-15 · updated 2026-06-17
Weakness: CWE-379

Description

Adobe Lightroom Classic 10.3 (and earlier) are affected by a privilege escalation vulnerability in the Offline Lightroom Classic installer. An authenticated attacker could leverage this vulnerability to escalate privileges. User interaction is required before product installation to abuse this vulnerability.

Affected products

Adobe Lightroom Classic: before 10.4 — fixed in 10.4

How to fix

Upgrade to a fixed version: Adobe Lightroom Classic 10.4. Check the vendor advisory for mitigations.

References

https://helpx.adobe.com/security/products/lightroom/apsb21-97.html
https://helpx.adobe.com/security/products/lightroom/apsb21-97.html

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