Adobe Photoshop: Integer overflow allows code execution via malicious file
Summary
Adobe Photoshop Desktop on Windows and macOS contains an integer overflow (CWE-190) that can lead to arbitrary code execution in the context of the current user. An attacker must get a victim to open a malicious file, and the CVSS vector rates the attack as local. Adobe reports no exploitation in the wild for the issues in this update.
Affected
- Photoshop 2026: 27.10 and earlier (Windows and macOS)
- Photoshop 2025: 26.11.7 and earlier (Windows and macOS)
Fixed in
- Photoshop 2026: 27.11
- Photoshop 2025: 26.11.8
Workaround
Unknown. No vendor workaround is documented. Until the update is installed, do not open untrusted files from email or downloads.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in APSB26-158.
- CISA SSVC assessment: exploitation none, automatable no, technical impact total.
- No public proof of concept was found in the sources reviewed.
Our recommendation
- Update Photoshop 2026 to 27.11 and Photoshop 2025 to 26.11.8 via the Creative Cloud desktop app or the Admin Console.
- Check the installed versions on all workstations where Photoshop is used, especially those with local admin rights.
- Remind users not to open files from unknown senders or unverified downloads until the update is installed.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-158 www.adobe.com
- ZDI Advisory ZDI-26-777 www.zerodayinitiative.com
- ZDI October 2026 Security Update Review www.zerodayinitiative.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 2 Nov 2026, 00:06.
Original description (NVD)
Photoshop Desktop is affected by an Integer Overflow or Wraparound 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.
NVD references (1)
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.
Affected? We can help.
We check whether your systems are affected, install updates and close the gap – continuously with the System Health Checker if you wish.