CVE-2016-4203Acrobat Memory Corruption
Adobe Reader and Acrobat before 11.0.17, Acrobat and Acrobat Reader DC Classic before 15.006.30198, and Acrobat and Acrobat Reader DC Continuous before 15.017.20050 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via…
Published Jul 12, 2016 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2016-4203 is a critical-severity vulnerability (CVSS 9.8 v3) affecting Acrobat (Adobe), Acrobat Dc (Adobe), Acrobat Reader Dc (Adobe) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 27% probability of exploitation in the next 30 days.
- Fixed versions are available, including Acrobat 11.0.16, Acrobat Dc 15.006.30174, Acrobat Dc 15.016.20045.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
27%
Higher than 98.0% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Adobe Reader and Acrobat before 11.0.17, Acrobat and Acrobat Reader DC Classic before 15.006.30198, and Acrobat and Acrobat Reader DC Continuous before 15.017.20050 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4191, CVE-2016-4192, CVE-2016-4193, CVE-2016-4194, CVE-2016-4195, CVE-2016-4196, CVE-2016-4197, CVE-2016-4198, CVE-2016-4199, CVE-2016-4200, CVE-2016-4201, CVE-2016-4202, CVE-2016-4204, CVE-2016-4205, CVE-2016-4206, CVE-2016-4207, CVE-2016-4208, CVE-2016-4211, CVE-2016-4212, CVE-2016-4213, CVE-2016-4214, CVE-2016-4250, CVE-2016-4251, CVE-2016-4252, and CVE-2016-4254.
Affected Products
6 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AcrobatAdobe | See advisory | 11.0.16 |
| Acrobat DcAdobe | See advisory | 15.006.30174 |
| Acrobat Reader DcAdobe | See advisory | 15.006.30174 |
| ReaderAdobe | See advisory | 11.0.16 |
Patched Releases
Acrobat
11.0.16
Acrobat Dc
15.006.30174, 15.016.20045
Acrobat Reader Dc
15.006.30174, 15.016.20045
Reader
11.0.16
Timeline
Publicly disclosed
Jul 12, 2016
Last updated
May 6, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- patchhelpx.adobe.com · apsb16-26.html
- exploitExploitDB-40097
- other40097
- other91716
- other1036281
FAQ
Common Questions.
Adobe Reader and Acrobat before 11.0.17, Acrobat and Acrobat Reader DC Classic before 15.006.30198, and Acrobat and Acrobat Reader DC Continuous before 15.017.20050 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulner…
Affected: Acrobat (Adobe); Acrobat Dc (Adobe); Acrobat Reader Dc (Adobe), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Acrobat 11.0.16, Acrobat Dc 15.006.30174, Acrobat Dc 15.016.20045.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2016-4203 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo