SB2026082663 - Multiple vulnerabilities in Adobe InCopy
Published: August 26, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Out-of-bounds write (CVE-ID: CVE-2026-34706)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to out-of-bounds write in Adobe InCopy when parsing crafted content. A remote attacker can trick the victim into opening specially crafted content to execute arbitrary code.
User interaction is required to open crafted content.
2) Heap-based buffer overflow (CVE-ID: CVE-2026-34707)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to heap-based buffer overflow in Adobe InCopy when parsing crafted content. A remote attacker can trick the victim into opening specially crafted content to execute arbitrary code.
User interaction is required to open crafted content.
3) Stack-based buffer overflow (CVE-ID: CVE-2026-34708)
CWE-ID: CWE-121 - Stack-based buffer overflow
CVSSv4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to stack-based buffer overflow in Adobe InCopy when parsing crafted content. A remote attacker can trick the victim into opening specially crafted content to execute arbitrary code.
User interaction is required to open crafted content.
Remediation
Install update from vendor's website.