CVE-2026-48267 Overview
CVE-2026-48267 is a NULL Pointer Dereference vulnerability [CWE-476] affecting Adobe Digital Negative Software Development Kit (DNG SDK) versions 1.7.1 (build 2536) and earlier. The flaw allows an attacker to trigger an application crash, resulting in a denial-of-service condition. Exploitation requires user interaction, specifically that a victim opens a malicious DNG file crafted by the attacker. The attack vector is local, and no authentication is required. Adobe published security advisory APSB26-67 addressing this issue in the DNG SDK.
Critical Impact
Successful exploitation causes applications that integrate the vulnerable DNG SDK to crash when processing a malicious file, disrupting availability of image processing workflows.
Affected Products
- Adobe DNG Software Development Kit version 1.7.1 build 2536
- Adobe DNG Software Development Kit versions prior to 1.7.1 build 2536
- Third-party applications embedding vulnerable DNG SDK releases for raw image processing
Discovery Timeline
- 2026-07-06 - CVE-2026-48267 published to the National Vulnerability Database
- 2026-07-08 - Last updated in NVD database
Technical Details for CVE-2026-48267
Vulnerability Analysis
The vulnerability resides in the parsing logic of the Adobe DNG SDK, a library used to read and write Digital Negative (DNG) raw image files. When the SDK processes a maliciously crafted DNG file, code paths dereference a pointer that was never initialized or was set to NULL due to unhandled error conditions during file parsing.
The resulting access violation terminates the host process. Applications that rely on the DNG SDK for thumbnail generation, batch conversion, or automated ingestion pipelines are exposed whenever they process untrusted input. The impact is limited to availability, with no confidentiality or integrity consequences reported by Adobe.
Root Cause
The root cause is a missing NULL check on a pointer returned by an internal allocation or lookup routine during DNG file structure processing. When a crafted file omits or corrupts an expected metadata element, the SDK proceeds to dereference the pointer without validating it. This matches the CWE-476 pattern of trusting a value that can legitimately be NULL in malformed inputs.
Attack Vector
An attacker crafts a malicious DNG file and delivers it through email attachments, file shares, cloud storage, or web downloads. When a user opens the file in an application built on the vulnerable DNG SDK, the parser dereferences the invalid pointer and the process terminates. Exploitation cannot be triggered remotely without user interaction, and it does not provide code execution or data disclosure. Refer to the Adobe Security Advisory APSB26-67 for vendor technical details.
Detection Methods for CVE-2026-48267
Indicators of Compromise
- Unexpected termination of applications that process DNG or raw image files shortly after file open operations
- Windows Error Reporting or crash dump artifacts referencing modules from the Adobe DNG SDK
- DNG files received from untrusted sources with malformed IFD (Image File Directory) tag structures
Detection Strategies
- Monitor endpoint telemetry for repeated crashes of image processing applications correlated with recently opened DNG files
- Inspect DNG files with static parsers to identify malformed or missing required metadata tags before user access
- Correlate email or web download events delivering .dng files with subsequent process termination events on the same host
Monitoring Recommendations
- Enable crash reporting and forward Windows Error Reporting or macOS CrashReporter logs to a centralized log store for analysis
- Track DNG SDK version metadata across the software inventory to identify hosts still running builds at or below 1.7.1 (2536)
- Alert on repeated denial-of-service conditions in image-processing services that ingest user-supplied files
How to Mitigate CVE-2026-48267
Immediate Actions Required
- Identify all applications and internal tools that link against Adobe DNG SDK 1.7.1 (2536) or earlier
- Restrict processing of DNG files originating from untrusted sources until the SDK is updated
- Isolate automated image-ingestion pipelines that accept user-uploaded raw files behind sandboxed workers
Patch Information
Adobe has released a fixed version of the DNG SDK as described in security bulletin APSB26-67. Developers integrating the SDK must rebuild and redistribute affected applications with the updated library. End users should upgrade to the latest vendor releases of any product that embeds the DNG SDK.
Workarounds
- Do not open DNG files from untrusted sources until affected applications are updated
- Run image processing workloads in isolated or containerized environments so crashes do not disrupt broader services
- Implement server-side file validation to reject DNG files with malformed metadata prior to invoking the SDK
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
