CVE-2020-1472

CRITICALNVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score elevated to 10.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 10.0 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Exploited in the wild
10.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 10.0Exploit: cisa kev · ssvc active · kev ransomware · Metasploit · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.

CVSS v3
10.0
EG Score
10.0CRITICALhigh confidence
EG Risk
100
EG Risk 100/100CISA SSVC

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
Severity100% × 45%
Exploitation100% × 40%
Automatability100% × 15%
CISA SSVC: Attend at low mission impact; Act at medium or high.
Action: A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.
EPSS PROB
99%
EPSS %ILE
99th
KEV
⚠ Exploited

CISA SSVCAttend at low mission impact; Act at medium or high.

A fix is available. Apply it sooner than your standard update timelines at low mission impact and as soon as possible at medium or high.

Exploitation active (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 17, 2020

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated Oct 7, 2026
Patch available. Sources: microsoft.
microsoftMentions a patch (unverified)

Security Update Guide - Microsoft Security Response Center

Security Update Guide - Microsoft Security Response Center. Patch available via Microsoft Security Update

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1472
generic

[SECURITY] Fedora 33 Update: samba-4.13.0-11.fc33 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TAPQQZZAT4TG3XVRTAFV2Y3S7OAHFBUP/
generic

[SECURITY] Fedora 31 Update: samba-4.11.13-0.fc31 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ST6X3A2XXYMGD4INR26DQ4FP4QSM753B/
generic

[SECURITY] Fedora 32 Update: samba-4.12.7-0.fc32 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H4OTFBL6YDVFH2TBJFJIE4FMHPJEEJK3/
genericMentions a patch (unverified)

[SECURITY] [DLA 2463-1] samba security update

https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
generic

oss-security - Samba and CVE-2020-1472 ("Zerologon")

http://www.openwall.com/lists/oss-security/2020/09/17/2
generic

Packet Storm

http://packetstormsecurity.com/files/160127/Zerologon-Netlogon-Privilege-Escalation.html
generic

Packet Storm

http://packetstormsecurity.com/files/159190/Zerologon-Proof-Of-Concept.html

Vendor Advisories for CVE-2020-1472(1)

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

Patch Availability(7)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuwinbind (2:4.3.11+dfsg-0ubuntu0.16.04.30) @ xenial2026-10-10ubuntu
ubuntuwinbind (2:4.3.11+dfsg-0ubuntu0.16.04.31) @ xenial2026-10-10ubuntu
ubuntulibpam-smbpass (2:4.3.11+dfsg-0ubuntu0.14.04.20+esm9) @ trusty2026-10-10ubuntu
redhatsamba-0:4.11.6-112.el7rhgs2021-10-05redhat
redhatsamba-0:4.13.3-3.el82021-05-18redhat
redhatsamba-0:4.13.7-101.el8rhgs2021-05-05redhat
redhatsamba-0:4.10.16-9.el7_92020-12-15redhat

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.

Affected Packages

(20 across 20 ecosystems)
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.10.18-r0: fixed in 4.10.18-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.11.14-r0: fixed in 4.11.14-r0
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • 4.11.0 up to 4.12.7-r0: fixed in 4.12.7-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • every version up to 2:4.13.2+dfsg-2: fixed in 2:4.13.2+dfsg-2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • every version up to 2:4.13.2+dfsg-2: fixed in 2:4.13.2+dfsg-2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • every version up to 2:4.13.2+dfsg-2: fixed in 2:4.13.2+dfsg-2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
samba—
  • every version up to 2:4.13.2+dfsg-2: fixed in 2:4.13.2+dfsg-2
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
samba2:4.5.12+dfsg-1 ... 2:4.5.8+dfsg-2+deb9u2 (12 versions)
  • every version up to 2:4.5.16+dfsg-1+deb9u3: fixed in 2:4.5.16+dfsg-1+deb9u3
—

Weakness Classification(2)

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

Additional Vendor Advisories

(7)

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 88× in last 7d / 397× 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 1,716 total refreshes for this CVE.

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

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (8 GitHub PoCs) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitauxiliary/admin/dcerpc/cve_2020_1472_zerologon✓ verified
    First seen Sep 15, 2020

    Netlogon protocol vulnerability allowing domain takeover with no credentials.

    Open source ↗
  • GitHub PoCSecuraBV/CVE-2020-1472✓ verified
    First seen Sep 14, 2020

    Original Secura PoC — minimal, reads the white-paper detection script.

    Open source ↗
  • GitHub PoCRvn0xsy/ZeroLogon
    First seen Aug 31, 2022

    CVE-2020-1472 C++

    Open source ↗
  • Exploit-DBEDB-49071
    First seen Nov 18, 2020

    ZeroLogon - Netlogon Elevation of Privilege

    Open source ↗
  • GitHub PoCzeronetworks/zerologon
    First seen Sep 17, 2020

    Test script for CVE-2020-1472 for both RPC/TCP and RPC/SMB

    Open source ↗
  • GitHub PoCmstxq17/cve-2020-1472
    First seen Sep 16, 2020

    cve-2020-1472 复现利用及其exp

    Open source ↗
  • GitHub PoCk8gege/CVE-2020-1472-EXP
    First seen Sep 15, 2020

    Ladon Moudle CVE-2020-1472 Exploit 域控提权神器

    Open source ↗
  • GitHub PoCbb00/zer0dump
    First seen Sep 14, 2020

    Abuse CVE-2020-1472 (Zerologon) to take over a domain and then repair the local stored machine account password.

    Open source ↗
  • GitHub PoCcube0x0/CVE-2020-1472
    First seen Sep 14, 2020
    Open source ↗
  • GitHub PoCdirkjanm/CVE-2020-1472
    First seen Sep 14, 2020

    PoC for Zerologon - all research credits go to Tom Tervoort of Secura

    Open source ↗

Related CVEs(same product + same vendor + same CWE)

Same vendor

3 shown

redhat:RHBA-2021:1503 · redhat:RHSA-2021:3723

Frequently asked(6)

What is CVE-2020-1472?
CVE-2020-1472 is a critical vulnerability published on August 17, 2020. An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a…
When was CVE-2020-1472 disclosed?
CVE-2020-1472 was first published on August 17, 2020, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-1472 actively exploited?
Yes. CISA added CVE-2020-1472 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Microsoft Netlogon. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate attention. A fix is available. Apply it.
What is the CVSS score of CVE-2020-1472?
CVE-2020-1472 has a CVSS v3 base score of 10.0 (NVD).
Which products are affected by CVE-2020-1472?
CVE-2020-1472 affects Microsoft Netlogon. The affected packages EchelonGraph has on record, with version ranges, are listed in the Affected Packages section of this page.
How do I remediate CVE-2020-1472?
A fix for CVE-2020-1472 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2020-1472 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-1472

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