TI-2021-19563 Aliases CVE-2021-43753 GHSA-8cm5-g2j6-fh65

Adobe Lightroom TIF File Parsing Use-After-Free Information Disclosure Vulnerability

LOW 36CWE-416Published 2023-09-07 · Updated 2025-02-27

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Adobe Lightroom versions 4.4 (and earlier) are affected by a use-after-free vulnerability in the processing of parsing TIF files that could result in privilege escalation. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00453 39th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Adobe	Lightroom Desktop	up to 4.4	—	No fix listed	CNA

Lightroom Desktop VendorAdobe Affected up to 4.4 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:adobe:lightroom::::::::	before 5.1	Vulnerable	Adobe
cpe:2.3:o:microsoft:windows:-:::::::*	not specified by NVD	Running on	Microsoft

cpe:2.3:a:adobe:lightroom:*:*:*:*:*:*:*:* Versions before 5.1 Vulnerable ·Adobe
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-43753
2026-10-03 Alias added: GHSA-8cm5-g2j6-fh65

References

Advisory 1

https://helpx.adobe.com/security/products/lightroom/apsb21-119.html

TI-2026-35796 Lightroom Classic | Deserialization of Untrusted Data (CWE-502) CVSS 3.1HIGH 8.6
TI-2026-35835 Lightroom Classic | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) CVSS 3.1HIGH 8.6
TI-2020-07810 Uncontrolled search path in Adobe Lightroom CVSS 3.1HIGH 7.8
TI-2026-35804 Lightroom Classic | Out-of-bounds Write (CWE-787) CVSS 3.1HIGH 7.8
TI-2026-35803 Lightroom Classic | Out-of-bounds Write (CWE-787) CVSS 3.1HIGH 7.8
TI-2026-35802 Lightroom Classic | Out-of-bounds Write (CWE-787) CVSS 3.1HIGH 7.8

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences