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Vulnerabilities/CVE-2016-4117Public Intelligence Dossier
Source: adobe · Limited verification•Last verified: •Collection Degraded
CVE-2016-4117ListedCRITICAL (raw)CVSS 9.8NVD-CWE-noinfo

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

Published: 11 May 2016•Last updated: 10 Sept 2026, 09:47 AM IST•Source identifier: psirt@adobe.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added03 Mar 2022
Due24 Mar 2022
RansomwareKnown
CVSS score
9.8CRITICAL (raw)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Metric sourcenvd@nist.gov
EPSS probability
94.3%0.943
Percentile100th
Weakness type
NVD-CWE-noinfo
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; SOC ecosystem technology relevance; CRITICAL severity; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

9 source-backed products
Affected products and versions (source)
  • adobe flash player · <= 21.0.0.226 · NVD CPE · Source
  • redhat enterprise linux desktop · 5.0; 6.0 · NVD CPE · Source
  • redhat enterprise linux server · 5.0; 6.0; from rhui 5.0; from rhui 6.0 · NVD CPE · Source
  • redhat enterprise linux server from rhui · 5.0; 6.0 · NVD CPE · Source
  • redhat enterprise linux workstation · 5.0; 6.0 · NVD CPE · Source
  • opensuse evergreen · 11.4 · NVD CPE · Source
  • opensuse opensuse · 13.1; 13.2 · NVD CPE · Source
  • suse linux enterprise desktop · 12 · NVD CPE · Source
  • suse linux enterprise workstation extension · 12 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: The impacted product is end-of-life and should be disconnected if still in use.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: The impacted product is end-of-life and should be disconnected if still in use.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

Matched kev-network-exposure (CVSS AV:N, CISA KEV Listed); network-unauthenticated (CVSS AV:N, CVSS PR:N, CVSS UI:N)

Exposure

  1. Identify assets with the exact CVE and confirm the affected product/version against the advisory.Telemetry: DeviceTvmSoftwareVulnerabilities · KEV listing raises urgency, but inventory is needed to establish local exposure. · Rule kev-network-exposure
  2. Identify devices reporting this CVE and note which expose the affected service to untrusted networks.Telemetry: DeviceTvmSoftwareVulnerabilities · A network-reachable, no-privilege vector makes internet-facing instances the first exposure question. · Rule network-unauthenticated

Exploitation evidence

  1. Review relevant edge or application access logs for unusual requests around the advisory window.Telemetry: CommonSecurityLog · Log review is a hunting hypothesis; KEV listing alone does not show local exploitation. · Rule kev-network-exposure
Show more (2)

Exploitation evidence

  1. Review inbound connections to the affected service from unexpected sources since the advisory date.Telemetry: DeviceNetworkEvents · Hunting hypothesis from the CVSS vector; it does not show that exploitation occurred. · Rule network-unauthenticated

Response

  1. Recheck the affected assets after the source-stated mitigation or update is applied.Telemetry: DeviceTvmSoftwareVulnerabilities · A follow-up inventory check verifies local remediation. · Rule kev-network-exposure

CISA KEV Record

Catalog entry
03 Mar 2022
Required action due
24 Mar 2022
Known ransomware use
Known

The impacted product is end-of-life and should be disconnected if still in use.

Change History & Source Data

— No recorded material change

CNA / source
psirt@adobe.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:a:adobe:flash_player:*:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_server_from_rhui:5.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_server_from_rhui:6.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*, cpe:2.3:o:opensuse:evergreen:11.4:*:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-03-03helpx.adobe.comSource recordnvd.nist.govSource recordhelpx.adobe.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2016-4117
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2016-4117
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2016-4117"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

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Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.