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TI-2026-21714 Aliases CVE-2026-27287GHSA-9fhw-q4vh-f5xw

InCopy | Out-of-bounds Read (CWE-125)

Priority LOW 35CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00205 10th percentileScored 2026-11-07
Fix Fixed InCopy (Adobe): 21.3, 20.5.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AdobeInCopyup to 21.2; up to 20.5.221.3, 20.5.3Patch availableCNA
  • InCopy VendorAdobe Affected up to 21.2; up to 20.5.2 Fixed in 21.3, 20.5.3 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:adobe:incopy:*:*:*:*:*:*:*:*before 20.5.3; 21.0 to before 21.3VulnerableAdobe
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:adobe:incopy:*:*:*:*:*:*:*:* Versions before 20.5.3; 21.0 to before 21.3 Vulnerable ·Adobe
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

  • Fix · CNA InCopy (Adobe) Fixed in 21.3, 20.5.3

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    Adobe InCopy — helpx.adobe.com/security/products/incopy/apsb26-33.html

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-26877 InCopy | Out-of-bounds Write (CWE-787)Priority LOW 35
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-27287
  2. 2026-10-03 Alias added: GHSA-9fhw-q4vh-f5xw

References

Advisory 1

  • TI-2021-04195 Adobe InCopy DOCX file parsing directory traversal vulnerability could lead to remote code execution CVSS 3.1HIGH 8.8
  • TI-2022-12790 Adobe InCopy Font Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
  • TI-2022-12786 Adobe InCopy Font Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
  • TI-2022-12793 Adobe InCopy Font Parsing Use-After-Free Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
  • TI-2022-12791 Adobe InCopy Font Parsing Use-After-Free Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
  • TI-2022-12787 Adobe InCopy Font Parsing Out-Of-Bounds Read Remote Code Execution Vulnerability CVSS 3.0HIGH 7.8
See all 64 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences