# CVE-2026-21352: Adobe DNG SDK out-of-bounds write

Source: https://junglewise.ai/threats/cve-2026-21352-adobe-dng-sdk-out-of-bounds-write  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-02-10. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-21352 · Severity: high · CVSS 7.8 · Published 2026-02-10

Adobe's DNG SDK is a library used by photographers and image processing applications to handle Digital Negative (DNG) image files. An out-of-bounds write vulnerability allows attackers to execute arbitrary code when a victim opens a specially crafted malicious DNG image file, potentially compromising the user's system and data.

Technologies: [Adobe DNG SDK](https://junglewise.ai/threats/technologies/dng-sdk), [Adobe Dng Software Development Kit](https://junglewise.ai/threats/technologies/dng-software-development-kit). Vendors: [Adobe](https://junglewise.ai/threats/vendors/adobe).

## Quick answers

**Is CVE-2026-21352 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21352 being exploited in the wild.

**How severe is CVE-2026-21352?** High severity, with a CVSS score of 7.8, published 10 February 2026.

**Which products and versions are affected?** Adobe DNG SDK 1.7.1 build 2410 and earlier.

**Is there a fix for CVE-2026-21352?** 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-2026-21352 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-21352?** Check whether you run Adobe DNG SDK or Adobe Dng Software Development Kit 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

This vulnerability is an out-of-bounds write in Adobe DNG SDK versions 1.7.1 build 2410 and earlier. The defect occurs when processing malformed or malicious DNG files, allowing an attacker to write data beyond the bounds of an allocated buffer. Exploitation requires user interaction—a victim must be tricked into opening a malicious DNG file. Successful exploitation results in arbitrary code execution in the context of the current user. Adobe has released patches addressing this issue.

## Affected products

- Adobe DNG SDK 1.7.1 build 2410 and earlier

## Timeline

- 2026-02-10: disclosed
- 2026-02-10: advisory

## References

- [https://helpx.adobe.com/security/products/dng-sdk/apsb26-23.html](https://helpx.adobe.com/security/products/dng-sdk/apsb26-23.html)

## Related threats

- [Adobe DNG SDK out-of-bounds write in image parsing](https://junglewise.ai/threats/cve-2026-34620-adobe-dng-sdk-out-of-bounds-write-in-image-parsing)
- [Adobe DNG SDK out-of-bounds read in image processing](https://junglewise.ai/threats/cve-2026-34616-adobe-dng-sdk-out-of-bounds-read-in-image-processing)
- [Adobe DNG SDK stack-based buffer overflow](https://junglewise.ai/threats/cve-2026-48389-adobe-dng-sdk-stack-based-buffer-overflow)
- [Adobe DNG SDK NULL pointer dereference denial of service](https://junglewise.ai/threats/cve-2026-48267-adobe-dng-sdk-null-pointer-dereference-denial-of-service)
- [Adobe DNG SDK heap overflow in file processing](https://junglewise.ai/threats/cve-2026-47964-adobe-dng-sdk-heap-overflow-in-file-processing)