CVE-2026-34708: Stack-based Buffer Overflow (CWE-121) in Adobe InCopy
Adobe InCopy contains a stack-based buffer overflow vulnerability in versions 21. 3, 20. 5. 3, and earlier. This flaw could allow an attacker to execute arbitrary code with the privileges of the current user if the 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-2026-34708 is a stack-based buffer overflow vulnerability (CWE-121) affecting Adobe InCopy versions 21.3, 20.5.3, and earlier. Successful exploitation requires a user to open a malicious file, which could lead to arbitrary code execution in the context of the current user. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity. There is no vendor advisory or patch information currently available, and no known exploits in the wild have been reported.
Potential Impact
If exploited, this vulnerability allows an attacker to execute arbitrary code with the privileges of the current user, potentially leading to full compromise of the user's environment. The requirement for user interaction limits exploitation to scenarios where a user opens a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, users should exercise caution when opening files from untrusted sources and consider restricting access to Adobe InCopy or using application whitelisting to mitigate risk.
CVE-2026-34708: Stack-based Buffer Overflow (CWE-121) in Adobe InCopy
Description
Adobe InCopy contains a stack-based buffer overflow vulnerability in versions 21. 3, 20. 5. 3, and earlier. This flaw could allow an attacker to execute arbitrary code with the privileges of the current user if the 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-2026-34708 is a stack-based buffer overflow vulnerability (CWE-121) affecting Adobe InCopy versions 21.3, 20.5.3, and earlier. Successful exploitation requires a user to open a malicious file, which could lead to arbitrary code execution in the context of the current user. The vulnerability has a CVSS 3.1 base score of 7.8, indicating high severity. There is no vendor advisory or patch information currently available, and no known exploits in the wild have been reported.
Potential Impact
If exploited, this vulnerability allows an attacker to execute arbitrary code with the privileges of the current user, potentially leading to full compromise of the user's environment. The requirement for user interaction limits exploitation to scenarios where a user opens a malicious file.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, users should exercise caution when opening files from untrusted sources and consider restricting access to Adobe InCopy or using application whitelisting to mitigate risk.
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
- Gcve Source
- db.gcve.eu
Threat ID: 6a2866f48dd33fbd8572226e
Added to database: 6/9/2026, 7:18:12 PM
Last enriched: 6/9/2026, 9:57:19 PM
Last updated: 6/10/2026, 5:05:57 AM
Views: 6
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