CVE-2016-5195

HIGHNVD 7.09.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.0 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 5 sources updated this weekExploited in the wild
7.0
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 84%CVSS: 7.0Exploit: NoneExposed: 0

A fix is available — apply it.

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."

CVSS v3
7.0
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.7%
KEV
⚠ Exploited

Published

November 10, 2016

Last Modified

April 21, 2026

Advisory Details (4)

Auto-updated May 20, 2026
No patch confirmed yet.
generic

CEC Juniper Community

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10807
generic

CEC Juniper Community

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10774
generic

CEC Juniper Community

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10770
generic

mm: remove gup_flags FOLL_WRITE games from __get_user_pages() - kernel/git/torvalds/linux.git - Linux kernel source tree

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=19be0eaffa3ac7d8eb6784ad9bdbc7d67ed8e619

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-4.8.0-26-powerpc-e500mc (4.8.0-26.28) @ yakkety2026-07-22ubuntu
ubuntulinux-image-4.8.0-1017-raspi2 (4.8.0-1017.20) @ yakkety2026-07-22ubuntu
ubuntulinux-image-3.2.0-1491-omap4 (3.2.0-1491.118) @ precise2026-07-22ubuntu
ubuntulinux-image-3.2.0-113-highbank (3.2.0-113.155) @ precise2026-07-22ubuntu
ubuntulinux-image-extra-4.4.0-45-generic (4.4.0-45.66~14.04.1) @ trusty2026-07-22ubuntu
ubuntulinux-image-extra-4.4.0-45-generic (4.4.0-45.66) @ xenial2026-07-22ubuntu
ubuntulinux-image-4.4.0-1029-raspi2 (4.4.0-1029.36) @ xenial2026-07-22ubuntu
ubuntulinux-image-4.4.0-1032-snapdragon (4.4.0-1032.36) @ xenial2026-07-22ubuntu
ubuntulinux-image-extra-3.13.0-100-generic (3.13.0-100.147) @ trusty2026-07-22ubuntu
ubuntulinux-image-3.13.0-100-generic (3.13.0-100.147~precise1) @ precise2026-07-22ubuntu
redhatkernel-aarch64-0:4.5.0-15.2.1.el72017-03-02redhat
redhatkernel-0:2.6.32-220.68.1.el62016-11-01redhat
redhatkernel-0:2.6.32-358.75.1.el62016-11-01redhat
redhatkernel-0:2.6.32-504.54.1.el62016-10-31redhat
redhatkernel-0:2.6.18-238.57.1.el52016-10-31redhat
redhatkernel-0:2.6.18-348.32.1.el52016-10-31redhat
redhatkernel-0:2.6.18-416.el52016-10-28redhat
redhatkernel-0:2.6.32-431.75.1.el62016-10-27redhat
redhatkernel-rt-1:3.10.0-327.rt56.198.el6rt2016-10-26redhat
redhatkernel-rt-0:3.10.0-327.36.3.rt56.238.el72016-10-26redhat
redhatkernel-0:2.6.32-573.35.2.el62016-10-26redhat
redhatkernel-0:3.10.0-229.42.2.ael7b2016-10-26redhat
redhatkernel-0:2.6.32-642.6.2.el62016-10-26redhat
redhatkernel-0:3.10.0-327.36.3.el72016-10-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(24)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 88× in last 7d / 393× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 733 total refreshes for this CVE.

  1. 2026-07-23 01:23 UTCEG score recompute
  2. 2026-07-22 22:02 UTCEG score recompute
  3. 2026-07-22 20:51 UTCVendor advisory
  4. 2026-07-22 20:51 UTCGHSA enrichment
  5. 2026-07-22 19:40 UTCCISA KEV update
  6. 2026-07-22 16:58 UTCEG score recompute
  7. 2026-07-22 16:58 UTCVendor advisory
  8. 2026-07-22 16:58 UTCGHSA enrichment
  9. 2026-07-22 14:04 UTCEPSS rescore
  10. 2026-07-22 13:04 UTCVendor advisory
  11. 2026-07-22 13:04 UTCGHSA enrichment
  12. 2026-07-22 09:11 UTCVendor advisory
  13. 2026-07-22 09:11 UTCGHSA enrichment
  14. 2026-07-22 05:18 UTCVendor advisory
  15. 2026-07-22 05:18 UTCGHSA enrichment
  16. 2026-07-22 01:02 UTCVendor advisory
  17. 2026-07-22 01:02 UTCGHSA enrichment
  18. 2026-07-21 18:06 UTCVendor advisory
  19. 2026-07-21 18:06 UTCGHSA enrichment
  20. 2026-07-21 14:37 UTCCISA KEV update
  21. 2026-07-21 14:11 UTCVendor advisory
  22. 2026-07-21 14:11 UTCGHSA enrichment
  23. 2026-07-21 10:18 UTCVendor advisory
  24. 2026-07-21 10:18 UTCGHSA enrichment
  25. 2026-07-21 06:24 UTCVendor advisory
Show 75 more
  1. 2026-07-21 06:24 UTCGHSA enrichment
  2. 2026-07-21 02:31 UTCVendor advisory
  3. 2026-07-21 02:31 UTCGHSA enrichment
  4. 2026-07-20 22:38 UTCVendor advisory
  5. 2026-07-20 22:38 UTCGHSA enrichment
  6. 2026-07-20 18:46 UTCEG score recompute
  7. 2026-07-20 18:46 UTCVendor advisory
  8. 2026-07-20 18:45 UTCGHSA enrichment
  9. 2026-07-20 17:03 UTCEPSS rescore
  10. 2026-07-20 14:52 UTCVendor advisory
  11. 2026-07-20 14:52 UTCGHSA enrichment
  12. 2026-07-20 10:59 UTCVendor advisory
  13. 2026-07-20 10:58 UTCGHSA enrichment
  14. 2026-07-20 07:05 UTCVendor advisory
  15. 2026-07-20 07:05 UTCGHSA enrichment
  16. 2026-07-20 03:12 UTCVendor advisory
  17. 2026-07-20 03:11 UTCGHSA enrichment
  18. 2026-07-19 23:18 UTCVendor advisory
  19. 2026-07-19 23:18 UTCGHSA enrichment
  20. 2026-07-19 19:25 UTCVendor advisory
  21. 2026-07-19 19:25 UTCGHSA enrichment
  22. 2026-07-19 15:32 UTCVendor advisory
  23. 2026-07-19 15:32 UTCGHSA enrichment
  24. 2026-07-19 11:39 UTCVendor advisory
  25. 2026-07-19 11:39 UTCGHSA enrichment
  26. 2026-07-19 07:46 UTCVendor advisory
  27. 2026-07-19 07:46 UTCGHSA enrichment
  28. 2026-07-19 03:52 UTCVendor advisory
  29. 2026-07-19 03:52 UTCGHSA enrichment
  30. 2026-07-18 23:58 UTCVendor advisory
  31. 2026-07-18 23:58 UTCGHSA enrichment
  32. 2026-07-18 20:03 UTCVendor advisory
  33. 2026-07-18 20:02 UTCGHSA enrichment
  34. 2026-07-18 16:08 UTCVendor advisory
  35. 2026-07-18 16:07 UTCGHSA enrichment
  36. 2026-07-18 12:14 UTCVendor advisory
  37. 2026-07-18 12:14 UTCGHSA enrichment
  38. 2026-07-18 08:21 UTCVendor advisory
  39. 2026-07-18 08:21 UTCGHSA enrichment
  40. 2026-07-18 04:28 UTCVendor advisory
  41. 2026-07-18 04:28 UTCGHSA enrichment
  42. 2026-07-18 00:35 UTCVendor advisory
  43. 2026-07-18 00:35 UTCGHSA enrichment
  44. 2026-07-17 20:42 UTCVendor advisory
  45. 2026-07-17 20:42 UTCGHSA enrichment
  46. 2026-07-17 16:49 UTCVendor advisory
  47. 2026-07-17 16:48 UTCGHSA enrichment
  48. 2026-07-17 12:54 UTCVendor advisory
  49. 2026-07-17 12:54 UTCGHSA enrichment
  50. 2026-07-17 09:01 UTCEG score recompute
  51. 2026-07-17 09:01 UTCVendor advisory
  52. 2026-07-17 09:00 UTCGHSA enrichment
  53. 2026-07-17 05:06 UTCVendor advisory
  54. 2026-07-17 05:06 UTCGHSA enrichment
  55. 2026-07-17 01:14 UTCVendor advisory
  56. 2026-07-17 01:13 UTCGHSA enrichment
  57. 2026-07-16 21:20 UTCVendor advisory
  58. 2026-07-16 21:20 UTCGHSA enrichment
  59. 2026-07-16 17:27 UTCVendor advisory
  60. 2026-07-16 17:27 UTCGHSA enrichment
  61. 2026-07-16 17:04 UTCCISA KEV update
  62. 2026-07-16 16:59 UTCEPSS rescore
  63. 2026-07-16 16:59 UTCEPSS rescore
  64. 2026-07-16 13:34 UTCVendor advisory
  65. 2026-07-16 13:34 UTCGHSA enrichment
  66. 2026-07-16 09:41 UTCVendor advisory
  67. 2026-07-16 09:41 UTCGHSA enrichment
  68. 2026-07-16 05:48 UTCVendor advisory
  69. 2026-07-16 05:48 UTCGHSA enrichment
  70. 2026-07-16 01:55 UTCVendor advisory
  71. 2026-07-16 01:55 UTCGHSA enrichment
  72. 2026-07-15 22:02 UTCVendor advisory
  73. 2026-07-15 22:01 UTCGHSA enrichment
  74. 2026-07-15 18:07 UTCVendor advisory
  75. 2026-07-15 18:06 UTCGHSA enrichment

Publicly available exploits

(10 references)

Working exploit code is in the public domain (7 GitHub PoCs) (3 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCr1is/CVE-2022-0847
    First seen Mar 7, 2022

    CVE-2022-0847-DirtyPipe-Exploit CVE-2022-0847 是存在于 Linux内核 5.8 及之后版本中的本地提权漏洞。攻击者通过利用此漏洞，可覆盖重写任意可读文件中的数据，从而可将普通权限的用户提升到特权 root。 CVE-2022-0847 的漏洞原理类似于 CVE-2016-5195 脏牛漏洞（Dirty Cow），但它更容易被利用。漏洞作者将此漏洞命名为“Dirty Pipe”

    Open source ↗
  • GitHub PoCBrucetg/DirtyCow-EXP
    First seen May 27, 2018

    编译好的脏牛漏洞（CVE-2016-5195）EXP

    Open source ↗
  • GitHub PoChyln9/VIKIROOT
    First seen Jan 20, 2017

    CVE-2016-5195 (Dirty COW) PoC for Android 6.0.1 Marshmallow

    Open source ↗
  • Exploit-DBEDB-40839✓ verified
    First seen Nov 28, 2016

    Linux Kernel 2.6.22 < 3.9 - 'Dirty COW' 'PTRACE_POKEDATA' Race Condition Privilege Escalation (/etc/passwd Method)

    Open source ↗
  • Exploit-DBEDB-40847✓ verified
    First seen Nov 27, 2016

    Linux Kernel 2.6.22 < 3.9 - 'Dirty COW /proc/self/mem' Race Condition Privilege Escalation (/etc/passwd Method)

    Open source ↗
  • GitHub PoCfirefart/dirtycow
    First seen Nov 25, 2016

    Dirty Cow exploit - CVE-2016-5195

    Open source ↗
  • GitHub PoCaishee/scan-dirtycow
    First seen Oct 29, 2016

    Scan vuls kernel CVE-2016-5195 - DirtyCow

    Open source ↗
  • Exploit-DBEDB-40838
    First seen Oct 26, 2016

    Linux Kernel 2.6.22 < 3.9 - 'Dirty COW PTRACE_POKEDATA' Race Condition (Write Access Method)

    Open source ↗
  • GitHub PoCDavidBuchanan314/cowroot
    First seen Oct 24, 2016

    Universal Android root tool based on CVE-2016-5195. Watch this space.

    Open source ↗
  • GitHub PoCgbonacini/CVE-2016-5195
    First seen Oct 23, 2016

    A CVE-2016-5195 exploit example.

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2016-5195?
CVE-2016-5195 is a high vulnerability published on November 10, 2016. 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."
When was CVE-2016-5195 disclosed?
CVE-2016-5195 was first published in the National Vulnerability Database on November 10, 2016, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-5195 actively exploited?
Yes. CISA added CVE-2016-5195 to the Known Exploited Vulnerabilities catalog on March 3, 2022, affecting Linux Kernel. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2016-5195?
CVE-2016-5195 has a CVSS v3 base score of 7.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2016-5195?
CVE-2016-5195 affects Linux Kernel. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2016-5195?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-5195, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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