Adobe Photoshop: Out-of-bounds write allows code execution via crafted file
Summary
Adobe Photoshop Desktop contains an out-of-bounds write flaw. If a victim opens a malicious file, an attacker could execute arbitrary code with the rights of the current user. Adobe's bulletin APSB26-158 lists this CVE ID as a NULL pointer dereference causing denial of service (CVSS 5.5), which conflicts with the CVE record (CVSS 7.8, code execution); this entry treats it as high until Adobe or NVD confirms otherwise.
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
- Do not open files from untrusted sources in Photoshop until the update is installed.
- Restrict Photoshop use for untrusted files and apply standard phishing controls.
Exploitation
- Adobe is not aware of any exploits in the wild for the issues in this update.
- ZDI lists APSB26-158 as not exploited, Deployment Priority 3.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
- Exploitation requires a local user to open a crafted file, typically delivered by email, download or a shared design file.
Our recommendation
- Update Photoshop 2026 to 27.11 or later and Photoshop 2025 to 26.11.8 or later, via the Creative Cloud desktop app or the Admin Console.
- Prioritise users who open files from external sources and users with local admin rights.
- Patch the whole APSB26-158 bulletin, as it contains about 18 Photoshop CVEs.
- Re-check the NVD entry and the Adobe bulletin table for the severity and CWE conflict.
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 October 2026 Security Update Review www.zerodayinitiative.com
- CVE-2026-104347 (threatint mirror) cve.threatint.com
- CVE-2026-104347 (Strix) www.strix.ai
- Tenable plugin APSB26-158 (Vulners) vulners.com
- CVE-2026-104347 (OffSeq Radar) radar.offseq.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, 00:07.
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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