Quick answers
- Is CVE-2026-27287 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-27287 being exploited in the wild.
- How severe is CVE-2026-27287?
- High severity, with a CVSS score of 7.8, published 14 April 2026.
- Which products and versions are affected?
- Adobe InCopy 20.5.2, 21.2 and earlier.
- Is there a fix for CVE-2026-27287?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-27287 attacked?
- It is attacked with local access, in a network appliance.
- Am I affected by CVE-2026-27287?
- Check whether you run Adobe InCopy at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An out-of-bounds read vulnerability (CWE-125) exists in Adobe InCopy versions 20.5.2, 21.2 and earlier. The flaw is triggered during the parsing of specifically crafted files, leading to a read past the end of an allocated memory structure. While primarily a memory exhaustion or information disclosure class of bug, Adobe notes this specific vulnerability can be leveraged to achieve arbitrary code execution in the context of the current user. Exploitation requires local access and user interaction, specifically that a victim must be induced into opening a malicious file. Adobe has addressed this in newer versions (20.5.3 and 21.3).
Affected products
- Adobe InCopy 20.5.2, 21.2 and earlier
Timeline
- 2026-04-14: disclosed
- 2026-04-14: advisory: Adobe published APSB26-33