# CVE-2026-34620: Adobe DNG SDK out-of-bounds write in image parsing

Source: https://junglewise.ai/threats/cve-2026-34620-adobe-dng-sdk-out-of-bounds-write-in-image-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-27. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-34620 · Severity: medium · CVSS 5.5 · Published 2026-08-27

Adobe's DNG SDK is a library used to process digital image files in DNG format. Versions 1.7.1 2502 and earlier contain a memory corruption vulnerability that can be triggered when opening a specially crafted malicious image file. An attacker can exploit this to crash applications that use the SDK, causing service disruption or data loss for users attempting to process images.

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-2026-34620 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-34620 being exploited in the wild.

**How severe is CVE-2026-34620?** Medium severity, with a CVSS score of 5.5, published 27 August 2026.

**Which products and versions are affected?** Adobe DNG SDK 1.7.1 2502 and earlier.

**Is there a fix for CVE-2026-34620?** 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-2026-34620 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-34620?** 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 out-of-bounds write flaw in the DNG SDK's image parsing logic. The root cause is insufficient bounds checking when processing DNG image data. Exploitation requires user interaction—a victim must open or process a malicious DNG file—but no authentication or special privileges are required. A successful exploit corrupts application memory, leading to denial-of-service through application crash or unresponsiveness. Patches are expected from Adobe; affected versions are 1.7.1 2502 and earlier.

## Affected products

- Adobe DNG SDK 1.7.1 2502 and earlier

## Timeline

- 2026-08-27: disclosed
- 2026-08-27: advisory

## References

- [https://helpx.adobe.com/security/products/dng-sdk/apsb26-41.html](https://helpx.adobe.com/security/products/dng-sdk/apsb26-41.html)

## Related threats

- [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)
- [Adobe DNG SDK out-of-bounds read](https://junglewise.ai/threats/cve-2026-47963-adobe-dng-sdk-out-of-bounds-read)