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CVE-2016-4278

23
FAUCET Score

CVE-2016-4278 is an access restriction bypass vulnerability in Adobe Flash Player versions prior to 18.0.0.375, 23.0.0.162, and 11.2.202.635 across Windows, OS X, and Linux, allowing attackers to obtain sensitive information. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low attack complexity, requiring user interaction, and resulting in high confidentiality impact. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Despite limited community discussion and media coverage, Adobe released updates to address this and other vulnerabilities.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.2.202.632CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*
<= 22.0.0.211CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
<= 22.0.0.211CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*
<= 22.0.0.211CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*
<= 18.0.0.366CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:esr:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.06%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0406 is in the 95th percentile among its peer group of 26,221 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 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-0:11.2.202.635-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:11.2.202.635-1.el6_8
View patch

Vendor Advisories (1)

redhatCVE-2016-4278Critical

flash-plugin: multiple code execution issues fixed in APSB16-29

Sep 13, 2016

References

rhn.redhat.com / errata/RHSA-2016-1865.html
Third Party Advisory
helpx.adobe.com / security/products/flash-player/apsb16-29.html
PatchVendor Advisory
security.gentoo.org / glsa/201610-10
Third Party Advisory
securitytracker.com / id/1036791
Broken LinkThird Party AdvisoryVDB Entry