# CVE-2026-21353: Adobe DNG SDK integer overflow in file parsing

Source: https://junglewise.ai/threats/cve-2026-21353-adobe-dng-sdk-integer-overflow-in-file-parsing  
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-2026-21353 · Severity: high · CVSS 7.8 · Published 2026-02-10

Adobe DNG SDK is a library used by developers to read and process Digital Negative (DNG) image files. Versions 1.7.1 2410 and earlier contain an integer overflow vulnerability that allows an attacker to execute arbitrary code on a user's system if they convince the user to open a malicious DNG image file. This could lead to unauthorized access to sensitive data, system compromise, or malware installation.

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-2026-21353 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-21353 being exploited in the wild.

**How severe is CVE-2026-21353?** 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 2410 and earlier.

**Is there a fix for CVE-2026-21353?** 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-2026-21353 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-21353?** 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

The vulnerability is an integer overflow or wraparound in Adobe DNG SDK versions 1.7.1 2410 and earlier, affecting the file parsing logic. The integer overflow occurs in a component responsible for processing DNG image metadata or pixel data, leading to a heap or stack buffer overflow that enables arbitrary code execution. The attack requires user interaction—a victim must open a malicious DNG file in an application linked against the vulnerable SDK. No authentication or special privileges are needed beyond opening the file. Patches or mitigations should be available from Adobe for affected SDK versions.

## Affected products

- Adobe DNG SDK 1.7.1 2410 and earlier

## Timeline

- 2026-02-10: disclosed

## 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)