Full Report
Multiple vulnerabilities have been discovered in Adobe products, the most severe of which could allow for arbitrary code execution.Adobe After Effects is a digital effects, motion graphics, and compositing application.Adobe Audition is a comprehensive toolset that includes multitrack, waveform, and spectral display for creating, mixing, editing, and restoring audio content.Adobe Bridge is a creative asset manager that lets you preview, organize, edit, and publish multiple creative assets quickly and easily.Adobe DNG Software Development Kit (SDK) is a free set of tools and code that helps developers add support for Adobe's Digital Negative (DNG) universal RAW file format into their own applications and cameras.Adobe InDesign is a professional page layout and desktop publishing software used for designing and publishing content for both print and digital media.Adobe Lightroom is a cloud-based photo editing and management software designed for photographers to organize, edit, store, and share images across desktop, mobile, and web.Adobe Substance 3D is a suite of tools for creating 3D content, including modeling, texturing, and rendering.Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
Analysis Summary
# Vulnerability: Multiple Code Execution Flaws in Adobe Suite
Since the advisory lists multiple vulnerabilities spanning several products without assigning a singular most severe CVSS score, we will summarize the collective risk based on the severity description (Arbitrary Code Execution or ACE) and list all identified CVEs.
## CVE Details
- **CVE ID:** A collection of 37 CVEs identified: CVE-2026-21312 through CVE-2026-21315, CVE-2026-21317 through CVE-2026-21329, CVE-2026-21332, CVE-2026-21334 through CVE-2026-21348, CVE-2026-21350 through CVE-2026-21358.
- **CVSS Score:** Not explicitly provided for individual CVEs, though the risk implies high severity (likely 7.0-9.8 for ACE flaws).
- **CWE:** Various memory safety issues including Out-of-bounds Write (CWE-787), Use After Free (CWE-416), Buffer Overflow (CWE-120/CWE-121), Integer Overflow (CWE-190), Type Confusion (CWE-843), and NULL Pointer Dereference (CWE-476).
## Affected Systems
- **Products:** Adobe After Effects, Adobe Audition, Adobe Bridge, Adobe DNG Software Development Kit (SDK), Adobe InDesign, Adobe Lightroom Classic, Adobe Substance 3D Designer, Adobe Substance 3D Modeler, Adobe Substance 3D Stager.
- **Versions:**
* After Effects: 25.6 and earlier
* Audition: 25.3 and earlier
* Bridge: 15.1.3 (LTS) and earlier, 16.0.1 and earlier
* DNG SDK: 1.7.1 build 2410 and earlier
* InDesign: ID20.5.1 and earlier, ID21.1 and earlier
* Lightroom Classic: 15.1 and earlier
* Substance 3D Designer: 15.1.0 and earlier
* Substance 3D Modeler: 1.22.5 and earlier
* Substance 3D Stager: 3.1.6 and earlier
- **Configurations:** Successful exploitation relies on the user opening a malicious file processed by the affected applications. Impact severity is highly dependent on user privileges (higher impact for users with administrative rights).
## Vulnerability Description
A collection of multiple vulnerabilities exists across various major Adobe applications. The most critical flaws are memory safety issues (e.g., Out-of-bounds Write, Use After Free, Heap-based Buffer Overflow) which, when triggered—typically by processing specially crafted files—can lead to **Arbitrary Code Execution (ACE)**. This allows an attacker to run arbitrary code within the security context of the currently logged-in user.
## Exploitation
- **Status:** No reports of exploitation in the wild currently exist.
- **Complexity:** Varies by specific flaw, but memory corruption vulnerabilities often have Low to Medium complexity for exploitation with PoC development.
- **Attack Vector:** Likely **Network** (via file transfer/download) leading to local execution on the endpoint upon file processing.
## Impact
- **Confidentiality:** High (Attacker can view, change, or delete data accessible to the user context).
- **Integrity:** High (Attacker can install programs or modify system data).
- **Availability:** High (Can lead to system instability or denial of service, and full compromise via ACE).
## Remediation
### Patches
The provided text is an advisory summarizing the existence of vulnerabilities but **does not list the specific patch versions** released by Adobe to address these CVEs. Users must refer to the official Adobe Security Bulletin corresponding to MS-ISAC ADVISORY NUMBER: 2026-010.
### Workarounds
No official workarounds were detailed in the source material, but general mitigation for file-processing applications includes:
1. Restricting permissions for standard users to prevent privilege escalation post-exploitation.
2. Disabling the execution of downloaded or untrusted files created by these applications where possible.
## Detection
- **Indicators of compromise:** Look for unexpected process execution originating from Adobe application processes (e.g., `AfterFX.exe`, `Lightroom.exe`) communicating externally or writing/modifying suspicious files outside expected directories.
- **Detection methods and tools:** Endpoint Detection and Response (EDR) solutions should be configured to monitor for common exploit primitives associated with memory corruption, such as attempts to jump to shellcode or unusual heap allocations/writes.
## References
- **Vendor Advisories:** Refer to the external Adobe Security Bulletin associated with MS-ISAC ADVISORY NUMBER: 2026-010.
- **Relevant links - defanged:**
* hxxps://portal.cisecurity.org/
* hxxps://www.cisecurity.org/advisory
* hxxps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-21318 (Example CVE Link)