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CVE-2017-7494

CRITICAL
9.8
CVSS Score
Published: May 30, 2017 at 06:00 PM UTC
Updated: June 17, 2026 at 01:24 AM UTC
2 products affected across 2 vendorsDebian LinuxSAMBA

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Severity
CRITICAL9.8
Exploitation
CISA KEV
Exploit prediction
EPSS 99%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score99.4%

EPSS (Exploit Prediction Scoring System) estimates a 99.4% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

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.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Mar 30, 2023
Remediation Due
Apr 20, 2023
1286 days overdue
Notes
https://www.samba.org/samba/security/CVE-2017-7494.html
https://nvd.nist.gov/vuln/detail/CVE-2017-7494

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Debian Linux· Debiandrupal
95%
8.0
SAMBA· Samba
95%
3.5.0 ≤ v < 4.4.04.4.0 ≤ v < 4.4.144.5.0 ≤ v < 4.5.104.6.0 ≤ v < 4.6.4since 3.5.0
Affected range stops below 4.4.0, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.14, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.6.4, so it looks safe — our inference, not a vendor statement

References (17)

Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
http://www.debian.org/security/2017/dsa-3860
VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/98636
VDB Entryx_refsource_SECTRACKThird Party Advisory
Source: [email protected]
http://www.securitytracker.com/id/1038552
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1270
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1271
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1272
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1273
Vendor Advisoryx_refsource_REDHATThird Party Advisory
Source: [email protected]
https://access.redhat.com/errata/RHSA-2017:1390

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-94

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