# CVE-2026-48409: Adobe Lightroom Classic out-of-bounds write in file parser

Source: https://junglewise.ai/threats/cve-2026-48409-adobe-lightroom-classic-out-of-bounds-write-in-file-parser  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-48409 · Severity: high · CVSS 7.8 · Published 2026-08-11

Adobe Lightroom Classic is a photo management and editing tool used by photographers to organize and process digital images. A vulnerability in how the application parses certain file types could allow an attacker to execute malicious code on a user's computer if they open a specially crafted file, potentially compromising the system and accessing sensitive photo libraries and personal data.

Technologies: [Adobe Lightroom](https://junglewise.ai/threats/technologies/lightroom), [Adobe Lightroom Classic](https://junglewise.ai/threats/technologies/lightroom-classic), [Microsoft Windows](https://junglewise.ai/threats/technologies/windows). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe), [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-48409 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48409 being exploited in the wild.

**How severe is CVE-2026-48409?** High severity, with a CVSS score of 7.8, published 11 August 2026.

**Which products and versions are affected?** Adobe Lightroom Classic <UNKNOWN>.

**Is there a fix for CVE-2026-48409?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-48409 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-48409?** Check whether you run Adobe Lightroom, Adobe Lightroom Classic or Microsoft Windows at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

Lightroom Classic is affected by an out-of-bounds write vulnerability in its file parsing logic. The vulnerability occurs when the application processes a malicious file without properly validating buffer boundaries, allowing an attacker to write arbitrary data beyond the intended memory region. Exploitation requires user interaction—a victim must open a malicious file—and results in arbitrary code execution in the context of the current user. No remote attack vector is available; the attacker must socially engineer the victim to open the file. Patches are available through Adobe's security updates.

## Affected products

- Adobe Lightroom Classic <UNKNOWN>

## Timeline

- 2026-08-11: disclosed

## References

- [https://helpx.adobe.com/security/products/lightroom/apsb26-94.html](https://helpx.adobe.com/security/products/lightroom/apsb26-94.html)

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