Description
InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow 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.
Published: 2026-06-09
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is a heap-based buffer overflow in Adobe InCopy, which can allow an attacker to run arbitrary code with the privileges of the current user. When a user opens a specially crafted malicious file, the overflow can be triggered, compromising confidentiality, integrity, and availability of the system. The weakness is identified as CWE-122.

Affected Systems

Adobe InCopy versions 21.3, 20.5.3, and all earlier releases are affected.

Risk and Exploitability

The CVSS score of 7.8 indicates a high risk severity. EPSS data is not available, and the vulnerability is not listed in CISA's KEV, suggesting no widespread exploitation yet. Exploitation requires user interaction: an attacker must deliver a malicious file and persuade a user to open it. Because this is a local file-based attack, no network access is needed.

Generated by OpenCVE AI on June 9, 2026 at 20:07 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest official Adobe InCopy update that resolves the heap-based buffer overflow.
  • Restrict user permissions to open only trusted files; disable automatic opening of potentially unsafe documents.
  • Implement anti-malware or sandbox scanning of files before they are opened by InCopy.

Generated by OpenCVE AI on June 9, 2026 at 20:07 UTC.

Tracking

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Advisories

No advisories yet.

History

Wed, 10 Jun 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Microsoft
Microsoft windows
CPEs cpe:2.3:a:adobe:incopy:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Microsoft
Microsoft windows

Wed, 10 Jun 2026 01:45:00 +0000

Type Values Removed Values Added
First Time appeared Adobe
Adobe incopy
Vendors & Products Adobe
Adobe incopy

Tue, 09 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 09 Jun 2026 18:00:00 +0000

Type Values Removed Values Added
Description InCopy versions 21.3, 20.5.3 and earlier are affected by a Heap-based Buffer Overflow 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.
Title InCopy | Heap-based Buffer Overflow (CWE-122)
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

Subscriptions

Adobe Incopy
Apple Macos
Microsoft Windows
cve-icon MITRE

Status: PUBLISHED

Assigner: adobe

Published:

Updated: 2026-06-10T03:59:01.520Z

Reserved: 2026-03-30T17:30:36.498Z

Link: CVE-2026-34707

cve-icon Vulnrichment

Updated: 2026-06-09T18:11:00.522Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-09T18:16:43.330

Modified: 2026-06-10T13:01:37.070

Link: CVE-2026-34707

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-10T01:30:17Z

Weaknesses