Is CVE-2016-7855 being actively exploited?

Yes. CVE-2016-7855 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on March 3, 2022.

What is the CVSS score for CVE-2016-7855?

CVE-2016-7855 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2016-7855

HIGH · CVSS 8.8CISA KEV: actively exploitedEPSS 25.2%EU EUVD: exploited

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.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
EPSS score: 25.2% (98th percentile)
In CISA KEV: Yes, added March 3, 2022
In EU EUVD: Yes (EUVD-2016-8704)
Published: November 1, 2016
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Adobe Flash Player Use-After-Free Vulnerability

Added to the KEV catalog on March 3, 2022; federal remediation due March 24, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2016-8704 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 21, 2025.

View on the EU Vulnerability Database

Affected products

adobe / flash player
adobe / flash player
adobe / flash player
adobe / flash player
adobe / flash player
apple / mac os x
google / chrome os
linux / linux kernel
microsoft / windows
microsoft / windows 10
microsoft / windows 10
microsoft / windows 10
microsoft / windows 8.1
microsoft / windows rt 8.1
microsoft / windows server 2012
microsoft / windows server 2012
redhat / enterprise linux desktop
redhat / enterprise linux desktop
redhat / enterprise linux server
redhat / enterprise linux server
redhat / enterprise linux workstation
redhat / enterprise linux workstation

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical

References

http://rhn.redhat.com/errata/RHSA-2016-2119.html(Third Party Advisory)
http://www.securityfocus.com/bid/93861(Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1037111(Third Party Advisory, VDB Entry)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-128(Patch, Vendor Advisory)
https://helpx.adobe.com/security/products/flash-player/apsb16-36.html(Patch, Vendor Advisory)
https://security.gentoo.org/glsa/201610-10(Third Party Advisory)
https://security.googleblog.com/2016/10/disclosing-vulnerabilities-to-protect.html(Third Party Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-7855(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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