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CVE-2016-7855

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and...

8.8 HighIn KEVPublic exploitFix available

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

25.2%Up 19.3 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 8.8

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Record
CVE-2016-7855
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0
9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness
CWE-416
Updated
2026-11-02
CVE List 8.8

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Record
CVE-2016-7855
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-416
Updated
2026-11-02
EUVDEUVD-2016-8704 8.8

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Record
EUVD-2016-8704
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-fq8g-m89m-mrw9 8.8

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and...

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Record
GHSA-fq8g-m89m-mrw9
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-416
Updated
2026-11-02
CISA KEV No score

Adobe Flash Player Use-After-Free Vulnerability

Use-after-free vulnerability in Adobe Flash Player Windows and OS and Linux allows remote attackers to execute arbitrary code.

Record
CVE-2016-7855
Weakness
CWE-416
Updated
2026-11-02
OSVRHSA-2016:2119 8.8

Red Hat Security Advisory: flash-plugin security update

Record
RHSA-2016:2119
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2016-7855 8.8

Use-after-free vulnerability in Adobe Flash Player before 23.0.0.205 on Windows and OS X and before 11.2.202.643 on Linux allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in October 2016.

Record
UBUNTU-CVE-2016-7855
CVSS 3.1
8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 3.0
8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVMGASA-2016-0360 No score

Updated flash-player-plugin packages fix security vulnerability

This update fixes a use-after-free issue that can be triggered by attackers for arbitrary code execution, potentially allow the attacker to take control of the affected system (CVE-2016-7855).

Record
MGASA-2016-0360
Updated
2026-11-02
OSVSUSE-SU-2016:2662-1 No score

Security update for flash-player

This update for flash-player to version 11.2.202.643 fixes one security issue.

This security issue was fixed:

  • CVE-2016-7855: Use-after-free vulnerability that could lead to code execution (bsc#1007098).
Record
SUSE-SU-2016:2662-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
flash-player-plugin
Mageia:5
 before 11.2.202.643-1.mga5.nonfree
11.2.202.643-1.mga5.nonfree
flash-plugin
Red Hat:rhel_extras:5::client
 before 0:11.2.202.643-1.el5_11
0:11.2.202.643-1.el5_11
flash-plugin
Red Hat:rhel_extras:5::server
 before 0:11.2.202.643-1.el5_11
0:11.2.202.643-1.el5_11
flash-plugin
Red Hat:rhel_extras:6
 before 0:11.2.202.643-1.el6_8
0:11.2.202.643-1.el6_8
flash-player
SUSE:Linux Enterprise Desktop 12 SP1
 before 11.2.202.643-146.1
11.2.202.643-146.1
flash-player
SUSE:Linux Enterprise Workstation Extension 12 SP1
 before 11.2.202.643-146.1
11.2.202.643-146.1
flashplugin-nonfree
Ubuntu:14.04:LTS
 before 11.2.202.643ubuntu0.14.04.1, plus listed versions
11.2.202.310ubuntu111.2.202.327ubuntu0.13.10.111.2.202.332ubuntu111.2.202.335ubuntu111.2.202.336ubuntu1
Show 41 moreShow less
11.2.202.341ubuntu111.2.202.346ubuntu111.2.202.350ubuntu111.2.202.356ubuntu0.14.04.111.2.202.359ubuntu0.14.04.111.2.202.378ubuntu0.14.04.111.2.202.394ubuntu0.14.04.111.2.202.400ubuntu0.14.04.111.2.202.406ubuntu0.14.04.111.2.202.406ubuntu0.14.04.211.2.202.411ubuntu0.14.04.111.2.202.418ubuntu0.14.04.111.2.202.424ubuntu0.14.04.111.2.202.425ubuntu0.14.04.111.2.202.429ubuntu0.14.04.111.2.202.438ubuntu0.14.04.111.2.202.440ubuntu0.14.04.111.2.202.442ubuntu0.14.04.111.2.202.451ubuntu0.14.04.111.2.202.457ubuntu0.14.04.111.2.202.460ubuntu0.14.04.111.2.202.466ubuntu0.14.04.111.2.202.468ubuntu0.14.04.111.2.202.481ubuntu0.14.04.111.2.202.481ubuntu0.14.04.211.2.202.491ubuntu0.14.04.111.2.202.508ubuntu0.14.04.111.2.202.521ubuntu0.14.04.111.2.202.535ubuntu0.14.04.111.2.202.540ubuntu0.14.04.211.2.202.548ubuntu0.14.04.111.2.202.554ubuntu0.14.04.111.2.202.559ubuntu0.14.04.111.2.202.569ubuntu0.14.04.111.2.202.577ubuntu0.14.04.111.2.202.616ubuntu0.14.04.111.2.202.621ubuntu0.14.04.111.2.202.626ubuntu0.14.04.111.2.202.632ubuntu0.14.04.111.2.202.635ubuntu0.14.04.111.2.202.637ubuntu0.14.04.1
11.2.202.643ubuntu0.14.04.1
flashplugin-nonfree
Ubuntu:16.04:LTS
 before 11.2.202.643ubuntu0.16.04.1, plus listed versions
11.2.202.540ubuntu211.2.202.548ubuntu111.2.202.554ubuntu111.2.202.559ubuntu111.2.202.569ubuntu1
Show 7 moreShow less
11.2.202.577ubuntu111.2.202.616ubuntu111.2.202.621ubuntu0.16.04.111.2.202.626ubuntu0.16.04.111.2.202.632ubuntu0.16.04.111.2.202.635ubuntu0.16.04.111.2.202.637ubuntu0.16.04.1
11.2.202.643ubuntu0.16.04.1

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
PoC in GitHubswagatbora90/CheckFlashPlayerVersion2016-10-26

History

History
RecordedChangedSources
exploitation
first indexedCVE List, EUVD, GitHub Advisories, CISA KEV, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2016-7855 is a high vulnerability (CVSS 8.8) in Adobe Flash Player, published October 27, 2016. CISA lists it as known to be exploited, since March 3, 2022. EUVD reports exploitation since March 3, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 25.2%, the 97th percentile. Fixed in flash-player-plugin 11.2.202.643-1.mga5.nonfree.

References

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