Adobe After Effects: Out-of-bounds Write
Summary
Adobe After Effects contains an out-of-bounds write vulnerability (CVE-2026-113516) that can lead to arbitrary code execution in the context of the current user. Exploitation requires a local user to open a malicious file, so an attacker needs to deliver the file to the victim, for example by e-mail or in a shared project folder. Adobe reports no known exploitation in the wild.
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 26.5 branch: update to 26.5.3
- Adobe After Effects 25.6.6 and earlier: update to 27.0
Workaround
Unknown.
- No workaround is documented by Adobe. Patching is the only confirmed fix.
- Until patched, do not open project files from unknown or external senders, and restrict who can place files in shared project folders.
Exploitation
- Adobe states it is not aware of any exploits in the wild for the issues in APSB26-100.
- No public proof of concept found.
- Not listed in CISA KEV as far as could be determined.
Our recommendation
- Inventory all After Effects installations and their versions.
- Update to 27.0, or to 26.5.3 if the 26.5 line must be kept, via Creative Cloud. Confirm the details against bulletin APSB26-100 first.
- Instruct staff to handle project files from untrusted sources with caution until the update is installed.
- Prioritise systems used by creative or media staff who exchange files with clients or freelancers.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-100 www.adobe.com
- CVE Record CVE-2026-113516 www.cve.org
- ZDI November 2026 security update review www.zerodayinitiative.com
- Adobe After Effects fixed issues helpx.adobe.com
- Adobe After Effects release notes helpx.adobe.com
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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