Adobe After Effects: Out-of-bounds write leads to arbitrary code execution
Summary
Adobe After Effects contains an out-of-bounds write vulnerability (CWE-787) that can lead to arbitrary code execution in the context of the current user. An attacker must convince a victim to open a malicious file, such as a project file. Adobe fixed the issue in APSB26-100, and no exploitation in the wild is known.
Affected
- Adobe After Effects 26.5 and earlier (Windows and macOS)
- Adobe After Effects 25.6.6 and earlier (Windows and macOS)
Fixed in
- Adobe After Effects 27.0 (Windows and macOS)
- Adobe After Effects 26.5.3 (Windows and macOS)
Workaround
Unknown.
Exploitation
- No exploitation in the wild known; Adobe is not aware of any exploits for the issues in APSB26-100.
- No public proof of concept found.
- Not listed in CISA KEV according to a third-party aggregator; CISA's catalogue was not checked directly.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Adobe After Effects to 27.0 or 26.5.3 via the Creative Cloud desktop app or the Adobe Download Center.
- Until patched, do not open project files, templates or media from unknown or untrusted senders.
- Prioritise creative workstations that regularly exchange files with external freelancers or partners.
- Verify the installed version after the update.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- CVE Record CVE-2026-113523 www.cve.org
- Adobe Security Bulletin APSB26-100 www.adobe.com
- Zero Day Initiative November 2026 Security Update Review www.zerodayinitiative.com
- Adobe After Effects release notes helpx.adobe.com
- Strix CVE-2026-113523 www.strix.ai
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 02:15.
Original description (NVD)
After Effects is affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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