Product:
InCopy
Summary
InCopy versions 20.5.2, 21.2 and earlier are affected by an out-of-bounds write 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.
Details
| Severity | Base Score | CVE |
|---|---|---|
| HIGH | 7.8 | CVE-2026-34631 |
Exploitation
To exploit this vulnerability, an attacker must craft a malicious file that, when opened by the victim using an affected version of InCopy, triggers the out-of-bounds write condition. This requires the victim to be tricked into opening the file, leading to potential arbitrary code execution with the privileges of the current user.
Affected Products
- InCopy 20.5.2: Affected by an out-of-bounds write vulnerability.
- InCopy 21.2: Also vulnerable to the same issue.
Mitigation
Users are advised to update to the latest version of InCopy to mitigate the risk associated with this vulnerability. Additionally, users should avoid opening files from untrusted sources to reduce the likelihood of exploitation.