CVE-2022-0847

HIGHNVD 7.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-04-25), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
7.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 89%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.

CVSS v3
7.8
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
99.8%
KEV
⚠ Exploited

Published

March 10, 2022

Last Modified

November 6, 2025

Advisory Details (8)

Auto-updated Jun 3, 2026
🔬 Proof of concept available. Patch available. Sources: redhat.
generic

SUSE Customer Portal

https://www.suse.com/support/kb/doc/?id=000020603
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20220325-0005/
generic

Security Advisory

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015
generic🟡 PoC Available

The Dirty Pipe Vulnerability — The Dirty Pipe Vulnerability documentation

https://dirtypipe.cm4all.com/
redhat Patch Available

2060795 – (CVE-2022-0847) CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=2060795
generic

Packet Storm

http://packetstormsecurity.com/files/166258/Dirty-Pipe-Local-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/166230/Dirty-Pipe-SUID-Binary-Hijack-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/166229/Dirty-Pipe-Linux-Privilege-Escalation.html

Vendor Advisories for CVE-2022-0847(7)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-unsigned-5.13.0-1010-intel (5.13.0-1010.10) @ focal2026-07-22ubuntu
ubuntulinux-image-lowlatency (5.13.0.35.44) @ impish2026-07-22ubuntu
redhatredhat-virtualization-host-0:4.4.10-202203101736_8.52022-03-14redhat
redhatkernel-rt-0:4.18.0-305.40.2.rt7.113.el8_42022-03-10redhat
redhatkernel-0:4.18.0-305.40.2.el8_42022-03-10redhat
redhatkernel-rt-0:4.18.0-348.20.1.rt7.150.el8_52022-03-10redhat
redhatkernel-0:4.18.0-348.20.1.el8_52022-03-10redhat
redhatkernel-0:4.18.0-147.64.1.el8_12022-03-10redhat
redhatkernel-rt-0:4.18.0-193.79.1.rt13.129.el8_22022-03-10redhat
redhatkernel-0:4.18.0-193.79.1.el8_22022-03-10redhat

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.

Additional Vendor Advisories

(4)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 52× in last 7d / 218× 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 407 total refreshes for this CVE.

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

Publicly available exploits

(10 references)

Working exploit code is in the public domain (9 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCAlexisAhmed/CVE-2022-0847-DirtyPipe-Exploits
    First seen Mar 12, 2022

    A collection of exploits and documentation that can be used to exploit the Linux Dirty Pipe vulnerability.

    Open source ↗
  • GitHub PoCAl1ex/CVE-2022-0847
    First seen Mar 9, 2022

    CVE-2022-0847

    Open source ↗
  • GitHub PoCDataDog/dirtypipe-container-breakout-poc
    First seen Mar 9, 2022

    Container Excape PoC for CVE-2022-0847 "DirtyPipe"

    Open source ↗
  • Exploit-DBEDB-50808
    First seen Mar 8, 2022

    Linux Kernel 5.8 < 5.16.11 - Local Privilege Escalation (DirtyPipe)

    Open source ↗
  • GitHub PoCknqyf263/CVE-2022-0847
    First seen Mar 8, 2022

    The Dirty Pipe Vulnerability

    Open source ↗
  • GitHub PoCbasharkey/CVE-2022-0847-dirty-pipe-checker
    First seen Mar 8, 2022

    Bash script to check for CVE-2022-0847 "Dirty Pipe"

    Open source ↗
  • GitHub PoCZZ-SOCMAP/CVE-2022-0847
    First seen Mar 8, 2022

    Linux Kernel Local Privilege Escalation Vulnerability CVE-2022-0847.

    Open source ↗
  • GitHub PoCfebinrev/dirtypipez-exploit
    First seen Mar 8, 2022

    CVE-2022-0847 DirtyPipe Exploit.

    Open source ↗
  • 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 PoCArinerron/CVE-2022-0847-DirtyPipe-Exploit
    First seen Mar 7, 2022

    A root exploit for CVE-2022-0847 (Dirty Pipe)

    Open source ↗

Frequently asked(6)

What is CVE-2022-0847?
CVE-2022-0847 is a high vulnerability published on March 10, 2022. A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copypagetoiterpipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache…
When was CVE-2022-0847 disclosed?
CVE-2022-0847 was first published in the National Vulnerability Database on March 10, 2022, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-0847 actively exploited?
Yes. CISA added CVE-2022-0847 to the Known Exploited Vulnerabilities catalog on April 25, 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-2022-0847?
CVE-2022-0847 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2022-0847?
CVE-2022-0847 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-2022-0847?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-0847, 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

Explore the affected products and dependency analysis for CVE-2022-0847

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