CVE-2016-4171
HighExploitedPublic exploitflash-plugin: multiple code execution issues fixed in APSB16-18
Published Jun 14, 2016 · Updated Feb 4, 2026 · Also known as UBUNTU-CVE-2016-4171
Key Facts
Patch immediately- CVE-2016-4171 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Flash Player (Adobe), Opensuse, Enterprise Linux Desktop (Redhat) and 8 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 15, 2016. Public exploit code is available.
- EPSS estimates a 20% probability of exploitation in the next 30 days.
- Fixed versions are available, including Flash Player 11.2.202.621, Flash Player 18.0.0.352, Flash Player 21.0.0.242.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
20%
Higher than 97.4% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-4171 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in June 2016.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 25, 2022 | Apr 15, 2022 | Not reported |
| Industry KEV feed | Jun 15, 2016 | Apr 15, 2022 | Not reported |
| CIRCL KEV | Mar 25, 2022 | Apr 15, 2022 | Not reported |
| ENISA EUVD | Mar 25, 2022 | n/a | Not reported |
Required action: The impacted product is end-of-life and should be disconnected if still in use.
Affected Products
39 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Flash PlayerAdobe | See advisory | 11.2.202.621 |
| OpensuseOpensuse | 13.1, 13.2 | n/a |
| Enterprise Linux DesktopRedhat | 5.0, 6.0 | n/a |
| Enterprise Linux ServerRedhat | 5.0, 6.0 | n/a |
| Enterprise Linux WorkstationRedhat | 5.0, 6.0 | n/a |
Patched Releases
Flash Player
11.2.202.621, 18.0.0.352, 21.0.0.242, 11.2.202.626-133.1, 11.2.202.626-165.1, 11.2.202.626-2.100.1
flash-player-gnome
11.2.202.626-133.1, 11.2.202.626-165.1, 11.2.202.626-2.100.1
flash-player-kde4
11.2.202.626-165.1, 11.2.202.626-2.100.1
flash-plugin
0:11.2.202.626-1.el5_11, 0:11.2.202.626-1.el6_8
flashplugin-nonfree
11.2.202.626ubuntu0.14.04.1, 11.2.202.626ubuntu0.16.04.1
Timeline
Publicly disclosed
Jun 14, 2016
Added to Industry KEV feed
Jun 15, 2016
Added to CISA KEV
Mar 25, 2022
Added to CIRCL KEV
Mar 25, 2022
Added to ENISA EUVD
Mar 25, 2022
Last updated
Feb 4, 2026
References
- advisorySUSE-SU-2016:1613
- advisoryopenSUSE-SU-2016:1621
- advisoryopenSUSE-SU-2016:1625
- advisoryRHSA-2016:1238
- advisoryhttps://bugzilla.suse.com/984695
FAQ
Common Questions.
Unspecified vulnerability in Adobe Flash Player 21.0.0.242 and earlier allows remote attackers to execute arbitrary code via unknown vectors, as exploited in the wild in June 2016.
Affected: Flash Player (Adobe); Opensuse versions 13.1, 13.2; Enterprise Linux Desktop (Redhat) versions 5.0, 6.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 15, 2016.
Yes. It was added on Mar 25, 2022 with a federal remediation due date of Apr 15, 2022.
Public exploit code is available.
Fixed versions are available, including Flash Player 11.2.202.621, Flash Player 18.0.0.352, Flash Player 21.0.0.242.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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