CVE-2016-7855

Adobe Flash Player Use-After-Free

8.8 HIGHActively exploited (CISA KEV)EPSS 25.2%

Published1 Nov 2016
Added to CISA KEV3 Mar 2022
Remediation due24 Mar 2022

Description

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.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Affected products

Adobe Flash Player≤ 23.0.0.185 · ≤ 11.2.202.637

Redhat Enterprise Linux Desktop5.0 · 6.0

Redhat Enterprise Linux Server5.0 · 6.0

Redhat Enterprise Linux Workstation5.0 · 6.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

References

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

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2016-7855 being actively exploited?

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

How severe is CVE-2016-7855?

CVE-2016-7855 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 25.2% probability of exploitation.

Which products are affected by CVE-2016-7855?

Affected products include Adobe Flash Player, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2016-7855?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2016-7855 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.