November 13, 2026 Follow Egret
CVE-2017-7494 · CVE record: PUBLISHED

Samba Remote Code Execution Vulnerability

Samba samba

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.

Exploitation evidence

Known exploited · CISA KEV listed

Added 2023-03-30. Ransomware campaign use: Known.

CISA required action: Apply updates per vendor instructions.

CISA due date: 2023-04-20. This is the catalog’s deadline, not an assessment of your organization’s exposure.

KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗

Reported products and versions

Samba / samba

Default status: Not specified

  • affected: since 3.5.0

Fixes and workarounds

No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.

Sources and related reporting

CVE Program record ↗ · Download tracked evidence as JSON

Observed change timeline

History begins when Egret first downloads each source. It is not the complete upstream CVE history.

12 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-12",
  "epss": 0.99448,
  "percentile": 0.99943
}
10 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-10",
  "epss": 0.99448,
  "percentile": 0.99943
}
09 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-09",
  "epss": 0.99448,
  "percentile": 0.99943
}
08 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-08",
  "epss": 0.99448,
  "percentile": 0.99943
}
07 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-07",
  "epss": 0.99448,
  "percentile": 0.99942
}
07 Nov 2026, 06:20 Jerusalem · CVE Program record changed

Stored CNA snapshot at this observation.

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06 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
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  "percentile": 0.99942
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05 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
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  "epss": 0.99448,
  "percentile": 0.99942
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04 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-04",
  "epss": 0.99448,
  "percentile": 0.99942
}
03 Nov 2026, 18:20 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-03",
  "epss": 0.99448,
  "percentile": 0.99943
}
03 Nov 2026, 02:22 Jerusalem · EPSS observation updated

Stored EPSS snapshot at this observation.

{
  "date": "2026-11-02",
  "epss": 0.99448,
  "percentile": 0.99943
}
03 Nov 2026, 02:22 Jerusalem · CISA KEV status changed

Stored KEV snapshot at this observation.

{
  "cveID": "CVE-2017-7494",
  "cwes": [
    "CWE-94"
  ],
  "dateAdded": "2023-03-30",
  "dueDate": "2023-04-20",
  "forensicTriage": "No",
  "knownRansomwareCampaignUse": "Known",
  "notes": "https://www.samba.org/samba/security/CVE-2017-7494.html; https://nvd.nist.gov/vuln/detail/CVE-2017-7494",
  "product": "Samba",
  "requiredAction": "Apply updates per vendor instructions.",
  "shortDescription": "Samba contains a 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.",
  "vendorProject": "Samba",
  "vulnerabilityName": "Samba Remote Code Execution Vulnerability"
}
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