CVE-2017-7494

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-03-30), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 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
9.8
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 99%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
99(Act)
EG Risk 99/100SSVC: Act

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
Severity98% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS
99.9%
KEV
⚠ Exploited

Published

May 30, 2017

Last Modified

April 21, 2026

Advisory Details (8)

Auto-updated Apr 30, 2026
Patch available. Sources: redhat.
generic
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.2 Advanced Update Support, Red Hat Enterprise Linux 6.4 Advanced Update Support, Red Hat Enterprise

https://access.redhat.com/errata/RHSA-2017:1390
redhat Patch Available
https://access.redhat.com/errata/RHSA-2017:1273
redhat Patch Available

Affected: Red Hat Enterprise Linux 5 Extended

https://access.redhat.com/errata/RHSA-2017:1272
redhat Patch Available

Affected: Red Hat Enterprise Linux 6.

https://access.redhat.com/errata/RHSA-2017:1271
redhat Patch Available

Affected: Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7.

https://access.redhat.com/errata/RHSA-2017:1270
generic
http://www.securityfocus.com/bid/98636
generic

[SECURITY] [DSA 3860-1] samba security update

http://www.debian.org/security/2017/dsa-3860

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntusamba (2:3.6.25-0ubuntu0.12.04.11) @ precise2026-07-22ubuntu
ubuntuwinbind (2:4.3.11+dfsg-0ubuntu0.14.04.8) @ trusty2026-07-22ubuntu
redhatsamba-0:4.2.10-11.el7_22017-06-05redhat
redhatsamba3x-0:3.6.23-14.el5_112017-05-24redhat
redhatsamba-0:4.4.6-5.el7rhgs2017-05-24redhat
redhatsamba-0:4.4.4-14.el7_32017-05-24redhat
redhatsamba4-0:4.2.10-10.el6_92017-05-24redhat

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

(7)

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 57× in last 7d / 334× 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 680 total refreshes for this CVE.

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

Publicly available exploits

(10 references)

Working exploit code is in the public domain (8 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCd3fudd/CVE-2017-7494_SambaCry
    First seen Nov 1, 2022

    SambaCry (CVE-2017-7494) exploit for Samba | bind shell without Metasploit

    Open source ↗
  • GitHub PoCI-Rinka/BIT-EternalBlue-for-macOS_Linux
    First seen May 15, 2021

    Exploit CVE-2017-7494 for Net Security course final Assignment. This would reveal the vulnerability of services that run in administrative priority on Linux.

    Open source ↗
  • GitHub PoC0xm4ud/noSAMBAnoCRY-CVE-2017-7494
    First seen May 9, 2021

    CVE-2017-7494 python exploit

    Open source ↗
  • GitHub PoCjoxeankoret/CVE-2017-7494
    First seen Jun 5, 2017

    Remote root exploit for the SAMBA CVE-2017-7494 vulnerability

    Open source ↗
  • GitHub PoCbrianwrf/SambaHunter
    First seen May 30, 2017

    It is a simple script to exploit RCE for Samba (CVE-2017-7494 ).

    Open source ↗
  • Exploit-DBEDB-42084✓ verified
    First seen May 29, 2017

    Samba 3.5.0 < 4.4.14/4.5.10/4.6.4 - 'is_known_pipename()' Arbitrary Module Load (Metasploit)

    Open source ↗
  • GitHub PoCopsxcq/exploit-CVE-2017-7494
    First seen May 26, 2017

    SambaCry exploit and vulnerable container (CVE-2017-7494)

    Open source ↗
  • GitHub PoCWaffles-2/SambaCry
    First seen May 26, 2017

    CVE-2017-7494 - Detection Scripts

    Open source ↗
  • GitHub PoCbetab0t/cve-2017-7494
    First seen May 25, 2017

    Proof-of-Concept exploit for CVE-2017-7494(Samba RCE from a writable share)

    Open source ↗
  • Exploit-DBEDB-42060✓ verified
    First seen May 24, 2017

    Samba 3.5.0 - Remote Code Execution

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(6)

What is CVE-2017-7494?
CVE-2017-7494 is a critical vulnerability published on May 30, 2017. Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.
When was CVE-2017-7494 disclosed?
CVE-2017-7494 was first published in the National Vulnerability Database on May 30, 2017, 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-2017-7494 actively exploited?
Yes. CISA added CVE-2017-7494 to the Known Exploited Vulnerabilities catalog on March 30, 2023, affecting Samba Samba. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2017-7494?
CVE-2017-7494 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2017-7494?
CVE-2017-7494 affects Samba Samba. 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-2017-7494?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-7494, 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-2017-7494

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