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CVE-2016-4120

34
FAUCET Score

CVE-2016-4120 is a critical memory corruption vulnerability in Adobe Flash Player, affecting versions before 18.0.0.352 and 19.x through 21.x before 21.0.0.242 on Windows and OS X, and before 11.2.202.621 on Linux. This flaw allows attackers to execute arbitrary code or cause a denial of service. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation (KEV: No) and no public exploit code (Metasploit, Nuclei, ExploitDB: None), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
<= 21.0.0.241CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
<= 21.0.0.241CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*
<= 18.0.0.343CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:esr:*:*:*
<= 21.0.0.198CPE matchmatch criteria
cpe:2.3:a:adobe:air_sdk_\&_compiler:*:*:*:*:*:*:*:*
<= 21.0.0.198CPE matchmatch criteria
cpe:2.3:a:adobe:air_sdk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
6.27%
Probability of exploitation in next 30 days
EPSS Percentile
92.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0627 is in the 87th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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-0:11.2.202.621-1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:11.2.202.621-1.el6_8
View patch

Vendor Advisories (1)

redhatCVE-2016-4120Critical

flash-plugin: multiple code execution issues fixed in APSB16-15

May 10, 2016

References

rhn.redhat.com / errata/RHSA-2016-1079.html
Third Party Advisory
helpx.adobe.com / security/products/flash-player/apsb16-15.html
PatchVendor Advisory
security.gentoo.org / glsa/201606-08
Third Party Advisory
securityfocus.com / bid/90618
Broken LinkThird Party AdvisoryVDB Entry