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High

Arbitrary Code Execution in Adobe DNG SDK via Integer Overflow

IdentifiersCVE-2026-21353CWE-190· Integer Overflow or Wraparound

CVE-2026-21353 is an integer overflow/wraparound vulnerability in Adobe DNG SDK version 1.7.1 2410 and earlier. According to the provided content, processing a maliciously crafted file can trigger the flaw and lead to arbitrary code execution in the context of the current user. The issue is associated with opening a malicious file, indicating the vulnerable condition is reached during parsing or handling of attacker-controlled DNG input.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can result in arbitrary code execution with the privileges of the user who opens the malicious file. This can allow an attacker to run code, access or modify data available to that user, install additional payloads, or use the compromised process as a foothold for further activity. Impact is bounded by the current user's privileges.

Mitigation

If you can’t patch tonight, do this now.

Until a patched version is deployed, avoid opening untrusted or unsolicited DNG files, especially those received via email, downloads, or third-party content sources. Apply file filtering or validation controls for DNG inputs where feasible, and run file-processing workflows in sandboxed or otherwise isolated environments with least-privilege execution to reduce impact.

Remediation

Patch, then assume compromise.

Upgrade Adobe DNG SDK to a fixed version newer than 1.7.1 2410 once the vendor-provided patched release is available. Ensure all applications or products embedding the vulnerable SDK are rebuilt or updated with the corrected SDK version and redeployed.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
AdobeDng Sdkapplication
AdobeDng Software Development Kitapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

7 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity4

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-21353
NVD
nvd.nist.gov/vuln/detail/CVE-2026-21353
MITRE CWE · CWE-190
Integer Overflow or Wraparound
Vendor Advisory
helpx.adobe.com/security/products/dng-sdk/apsb26-23.html