Adobe Photoshop: Out-of-bounds write leading to code execution
Summary
Adobe Photoshop Desktop on Windows and macOS contains an out-of-bounds write vulnerability (CWE-787, CVE-2026-100111, CVSS 7.8). An attacker who gets a victim to open a malicious file can execute arbitrary code with the rights of the logged-in user. The attack requires no privileges but user interaction.
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.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in this update.
- Not listed in CISA KEV according to the Strix entry.
- No public proof-of-concept found in the research. This does not prove that none exists.
- CISA SSVC: exploitation none, automatable no, technical impact total.
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.
- Do not open files from unknown or untrusted senders.
- Remove local administrator rights from Photoshop users.
- Apply the update in the normal patch cycle, but do not defer it indefinitely.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Adobe Security Bulletin APSB26-158 www.adobe.com
- CVE-2026-100111 at threatint cve.threatint.com
- CVE-2026-100111 at Vulners vulners.com
- Zero Day Initiative October 2026 security update review www.zerodayinitiative.com
- Strix entry CVE-2026-100111 www.strix.ai
- Tenable/Nessus entry APSB26-158 (macOS) vulners.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, 00:11.
Original description (NVD)
Photoshop Desktop 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.
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.
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