Quick answers
- Is CVE-2026-21355 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21355 being exploited in the wild.
- How severe is CVE-2026-21355?
- Medium severity, with a CVSS score of 5.5, 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-2026-21355?
- 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-2026-21355 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-21355?
- 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 read in Adobe DNG SDK versions 1.7.1 2410 and earlier that occurs during image file processing. The issue allows reading memory beyond allocated buffer boundaries, enabling information disclosure of sensitive data resident in process memory. Exploitation requires user interaction—a victim must open a specially crafted DNG or related image file. The attack is network-accessible if the file is delivered via email or web download, but does not require authentication or special privileges on the target system. A successful exploit could expose cryptographic material, session tokens, or other sensitive information depending on what data is in memory at the time of exploitation.
Affected products
- Adobe DNG SDK 1.7.1 2410 and earlier
Timeline
- 2026-02-10: disclosed