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Vulnerabilities/CVE-2016-5195Public Intelligence Dossier
Source: canonical · Limited verification•Last verified: •Collection Degraded
CVE-2016-5195ListedHIGH (raw)CVSS 7.2CWE-362

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."

Published: 11 Nov 2016•Last updated: 17 Jun 2026, 06:18 AM IST•Source identifier: chrome-cve-admin@google.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added03 Mar 2022
Due24 Mar 2022
RansomwareUnknown
CVSS score
7.2HIGH (raw)
AV:L/AC:L/Au:N/C:C/I:C/A:C
Metric sourcenvd@nist.gov
EPSS probability
83.5%0.835
Percentile100th
Weakness type
CWE-362
No further CWE recorded
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

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

Affected Products & Remediation

18 source-backed products
Affected products and versions (source)
  • canonical ubuntu linux · 12.04; 14.04; 16.04; 16.10 · NVD CPE · Source
  • linux linux kernel · >= 2.6.22 < 3.2.83; >= 3.3 < 3.4.113; >= 3.5 < 3.10.104; >= 3.11 < 3.12.66; >= 3.13 < 3.16.38; >= 3.17 < 3.18.44; >= 3.19 < 4.1.35; >= 4.2 < 4.4.26; >= 4.5 < 4.7.9; >= 4.8 < 4.8.3 · NVD CPE · Source
  • redhat enterprise linux · 5; 6.0; 7.0; aus 6.2; aus 6.4; aus 6.5; eus 6.6; eus 6.7; eus 7.1; long life 5.6; long life 5.9; tus 6.5 · NVD CPE · Source
  • redhat enterprise linux aus · 6.2; 6.4; 6.5 · NVD CPE · Source
  • redhat enterprise linux eus · 6.6; 6.7; 7.1 · NVD CPE · Source
  • redhat enterprise linux long life · 5.6; 5.9 · NVD CPE · Source
  • redhat enterprise linux tus · 6.5 · NVD CPE · Source
  • debian debian linux · 7.0; 8.0 · NVD CPE · Source
  • fedoraproject fedora · 23; 24; 25 · NVD CPE · Source
  • paloaltonetworks pan-os · >= 5.1 < 7.0.14; >= 7.1.0 < 7.1.8 · NVD CPE · Source
  • netapp cloud backup · version range not provided by source · NVD CPE · Source
  • netapp hci storage nodes · version range not provided by source · NVD CPE · Source
  • netapp oncommand balance · version range not provided by source · NVD CPE · Source
  • netapp oncommand performance manager · version range not provided by source · NVD CPE · Source
  • netapp oncommand unified manager for clustered data ontap · version range not provided by source · NVD CPE · Source
  • netapp ontap select deploy administration utility · version range not provided by source · NVD CPE · Source
  • netapp snapprotect · version range not provided by source · NVD CPE · Source
  • netapp solidfire · version range not provided by source · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

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: Apply updates per vendor instructions.

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.

No rule-based guidance for this vulnerability class

CISA KEV Record

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

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
chrome-cve-admin@google.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*, cpe:2.3:o:canonical:ubuntu_linux:16.10:*:*:*:*:*:*:*, cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_aus:6.2:*:*:*:*:*:*:*, cpe:2.3:o:redhat:enterprise_linux_aus:6.4:*:*:*:*:*:*:*

Evidence & Provenance

2 public sources
CISA KEV CatalogAdded 2022-03-03nvd.nist.govSource 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-2016-5195
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2016-5195
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2016-5195"| 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.
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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.