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CVE-2016-4173

30
FAUCET Score

CVE-2016-4173 is a critical use-after-free vulnerability in Adobe Flash Player affecting versions before 18.0.0.366, 19.x through 22.x before 22.0.0.209 on Windows and OS X, and before 11.2.202.632 on Linux. This flaw allows unauthenticated attackers to execute arbitrary code on affected systems through user interaction. With a CVSS score of 8.8 (High), successful exploitation could lead to complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation (KEV) or public exploit code (Metasploit, ExploitDB), the vulnerability garnered significant community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
<= 22.0.0.192CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
<= 18.0.0.360CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:esr:*:*:*
<= 22.0.0.192CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*
<= 22.0.0.192CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
<= 22.0.0.192CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.04%
Probability of exploitation in next 30 days
EPSS Percentile
92.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0604 is in the 92nd percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

adobepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5 SupplementaryFixed in: flash-plugin-0:11.2.202.632-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:11.2.202.632-1.el6_8
View patch

Vendor Advisories (1)

redhatCVE-2016-4173Critical

flash-plugin: multiple code execution issues fixed in APSB16-25

Jul 12, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-07/msg00016.html
Broken Link
lists.opensuse.org / opensuse-security-announce/2016-07/msg00017.html
Broken Link
access.redhat.com / errata/RHSA-2016:1423
Third Party Advisory
docs.microsoft.com / en-us/security-updates/securitybulletins/2016/ms16-093
PatchVendor Advisory
helpx.adobe.com / security/products/flash-player/apsb16-25.html
PatchVendor Advisory
securityfocus.com / bid/91719
Third Party AdvisoryVDB Entry
securitytracker.com / id/1036280
Broken LinkThird Party AdvisoryVDB Entry