What is CVE-2016-4263?

CVE-2016-4263 is a critical-severity vulnerability in Adobe Digital Editions, classified under Use After Free. CVSS score: 9.8/10. Published 2016-09-16.

How severe is CVE-2016-4263?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Use After Free in Adobe Digital Editions

CVE-2016-4263

Use-after-free vulnerability in Adobe Digital Editions before 4.5.2 allows attackers to execute arbitrary code via unspecified vectors.

Vulnerability class: Use-After-Free

Published 2016-09-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.058 (92.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 92.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.058 · newest: 0.058 · change: 0.000

Affected products

Adobe Digital Editions

Weakness classification (CWE)

CWE-416 — Use After Free

References

www.securityfocus.com/bid/92925 (vdb-entry)
www.securitytracker.com/id/1036793 (vdb-entry)
helpx.adobe.com/security/products/Digital-Editions/apsb16-28.html (Vendor Advisory)

Frequently asked questions

What is CVE-2016-4263?: CVE-2016-4263 is a critical-severity vulnerability in Adobe Digital Editions, classified under Use After Free. CVSS score: 9.8/10. Published 2016-09-16.
How severe is CVE-2016-4263?: Critical severity. CVSS v3 base score is 9.8 out of 10.