How severe is CVE-2016-4117?

CVE-2016-4117 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2016-4117?

Affected package information for CVE-2016-4117 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2016-4117?

No fixed version has been published for CVE-2016-4117 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2016-4117 actively exploited in the wild?

Yes. There are 6 known exploit references for CVE-2016-4117, including 1 documented proof-of-concept exploit on Exploit-DB and 5 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2016-4117?

CVE-2016-4117 has an EPSS (Exploit Prediction Scoring System) score of 93.0%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2016-4117 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2016-4117 (Adobe Flash Player Arbitrary Code Execution Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2022-03-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-03-24. The required action was: The impacted product is end-of-life and should be disconnected if still in use. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

Which products and versions are affected by CVE-2016-4117?

CVE-2016-4117 affects adobe flash player; opensuse evergreen (1 version, e.g. 11.4); opensuse opensuse (2 versions, e.g. 13.1, 13.2); redhat enterprise linux desktop (2 versions, e.g. 5.0, 6.0), and 5 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2016-4117 published, and has it been updated?

CVE-2016-4117 was published on May 11, 2016 and was last updated on April 21, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2022-03-03 — agencies required to remediate by 2022-03-24

CVE-2016-4117

CRITICAL

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

Published

May 11, 2016

Updated

Apr 21, 2026

Affected

0 pkgs

Patched

None yet

Exploits

6 known

EPSS Exploitation Probability

via FIRST.org ↗

93.0%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

Affected Products

9 products · 16 configurations

Application

flash playeradobe

≤ 21.0.0.226

range

evergreenopensuse

1 version

11.4

opensuseopensuse

2 versions

13.113.2

enterprise linux desktopredhat

2 versions

5.06.0

enterprise linux serverredhat

2 versions

5.06.0

enterprise linux server from rhuiredhat

2 versions

5.06.0

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-46339remoteosx✓ Verified

Adobe Flash Player - DeleteRangeTimelineOperation Type Confusion (Metasploit)

by Metasploit · Feb 11, 2019

Exploit-DB Source

Frequently Asked Questions

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

O3 Security · Impact-Aware SCA

Is CVE-2016-4117 in your stack?

O3 detects CVE-2016-4117 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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