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CVE-2016-4273

50
FAUCET Score

CVE-2016-4273 is a critical memory corruption vulnerability affecting Adobe Flash Player versions before 18.0.0.382 and 23.0.0.185 on Windows and OS X, and before 11.2.202.637 on Linux, potentially leading to arbitrary code execution or denial of service. With a CVSS score of 8.8 (High), it presents a significant risk due to its network-based attack vector and low attack complexity, allowing unauthenticated attackers to achieve high impact on confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, a public exploit (EDB-40510) exists, and the vulnerability garnered notable community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
<= 23.0.0.162CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:chrome:*:*
<= 23.0.0.162CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:edge:*:*
<= 23.0.0.162CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:internet_explorer:*:*
<= 18.0.0.375CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player:*:*:*:*:esr:*:*:*
<= 23.0.0.162CPE matchmatch criteria
cpe:2.3:a:adobe:flash_player_desktop_runtime:*:*:*:*:*:*:*:*

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
19.90%
Probability of exploitation in next 30 days
EPSS Percentile
97.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-40510 · Oct 12, 2016
This CVE's current EPSS score of 0.1990 is in the 97th 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-0:11.2.202.637-1.el5_11
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: flash-plugin-0:11.2.202.637-1.el6_8
View patch

Vendor Advisories (1)

redhatCVE-2016-4273Critical

flash-plugin: multiple code execution issues fixed in APSB16-32

Oct 11, 2016

References

rhn.redhat.com / errata/RHSA-2016-2057.html
Third Party Advisory
helpx.adobe.com / security/products/flash-player/apsb16-32.html
PatchVendor Advisory
security.gentoo.org / glsa/201610-10
Third Party Advisory
exploit-db.com / exploits/40510
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/93490
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1036985
Broken LinkThird Party AdvisoryVDB Entry