# CVE-2026-48407: Adobe Lightroom Classic out-of-bounds write vulnerability

Source: https://junglewise.ai/threats/cve-2026-48407-adobe-lightroom-classic-out-of-bounds-write-vulnerability  
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-2026-48407 · Severity: high · CVSS 7.8 · Published 2026-08-11

Adobe Lightroom Classic, a popular photo editing and management application, contains an out-of-bounds write vulnerability that could allow an attacker to execute arbitrary code on a user's system. An attacker would need to trick a victim into opening a specially crafted malicious file, after which code would run with the privileges of the current user.

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-2026-48407 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-48407 being exploited in the wild.

**How severe is CVE-2026-48407?** High severity, with a CVSS score of 7.8, published 11 August 2026.

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

**Is there a fix for CVE-2026-48407?** 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-2026-48407 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-48407?** Check whether you run Adobe Lightroom, Adobe Lightroom Classic or Microsoft Windows. 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

This vulnerability is a memory safety issue (out-of-bounds write) in Adobe Lightroom Classic's file parsing logic. The root cause lies in inadequate bounds checking when processing certain file formats, allowing an attacker to write data beyond allocated memory boundaries. The attack vector is user interaction: a victim must open a malicious file (e.g., a crafted image or catalog file) to trigger the vulnerability. No authentication or special privileges are required. Successful exploitation results in arbitrary code execution in the context of the current user. Patches are expected to be available through Adobe's regular security update process.

## Affected products

- Adobe Lightroom Classic

## 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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