CVE-2026-34706: Out-of-bounds Write (CWE-787) in Adobe InCopy
Adobe InCopy contains an out-of-bounds write vulnerability (CWE-787) in versions 21. 3, 20. 5. 3, and earlier. This flaw can lead to arbitrary code execution with the privileges of the current user if a victim opens a specially crafted malicious file. Exploitation requires user interaction. The vulnerability has a high severity rating with a CVSS score of 7. 8.
AI Analysis
Technical Summary
CVE-2026-34706 is an out-of-bounds write vulnerability affecting Adobe InCopy versions 21.3, 20.5.3, and earlier. This vulnerability allows an attacker to execute arbitrary code in the context of the current user by convincing the user to open a malicious file. The CVSS 3.1 vector indicates the attack requires local access with low complexity, no privileges, and user interaction. The impact includes high confidentiality, integrity, and availability consequences. No official patch or remediation guidance has been published by Adobe as of the provided data.
Potential Impact
Successful exploitation can result in arbitrary code execution with the privileges of the current user, potentially leading to full compromise of the affected system's user context. Confidentiality, integrity, and availability of the system can be fully impacted. Exploitation requires user interaction (opening a malicious file). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when opening files from untrusted sources. Monitor Adobe's security advisories for updates regarding patches or mitigations.
CVE-2026-34706: Out-of-bounds Write (CWE-787) in Adobe InCopy
Description
Adobe InCopy contains an out-of-bounds write vulnerability (CWE-787) in versions 21. 3, 20. 5. 3, and earlier. This flaw can lead to arbitrary code execution with the privileges of the current user if a victim opens a specially crafted malicious file. Exploitation requires user interaction. The vulnerability has a high severity rating with a CVSS score of 7. 8.
CVSS v3.1
Score 7.8high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-34706 is an out-of-bounds write vulnerability affecting Adobe InCopy versions 21.3, 20.5.3, and earlier. This vulnerability allows an attacker to execute arbitrary code in the context of the current user by convincing the user to open a malicious file. The CVSS 3.1 vector indicates the attack requires local access with low complexity, no privileges, and user interaction. The impact includes high confidentiality, integrity, and availability consequences. No official patch or remediation guidance has been published by Adobe as of the provided data.
Potential Impact
Successful exploitation can result in arbitrary code execution with the privileges of the current user, potentially leading to full compromise of the affected system's user context. Confidentiality, integrity, and availability of the system can be fully impacted. Exploitation requires user interaction (opening a malicious file). There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution when opening files from untrusted sources. Monitor Adobe's security advisories for updates regarding patches or mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- adobe
- Date Reserved
- 2026-03-30T17:30:36.498Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a28f1e98dd33fbd85e94453
Added to database: 6/10/2026, 5:11:05 AM
Last enriched: 6/10/2026, 5:27:14 AM
Last updated: 6/10/2026, 6:37:32 AM
Views: 4
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