Buffer overflow in Adobe Incopy
CVE-2026-34707
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.002
Affected products
- Adobe Incopy
- Adobe Incopy — versions 0
- Apple macOS
- Microsoft Windows
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/incopy/apsb26-59.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-34707?
- CVE-2026-34707 is a high-severity vulnerability in Adobe Incopy, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-06-09.
- How severe is CVE-2026-34707?
- High severity. CVSS v3 base score is 7.8 out of 10.