CVE-2017-7494
CRITICALCVSS 9.8/10Actively ExploitedEPSS 99.45%
Last modified
CVE-2017-7494 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 99.45% chance of exploitation in the next 30 days.
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.
Metrics
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | >= 3.5.0, < 4.4.0 |
| Samba | Samba | >= 4.4.0, < 4.4.14 |
| Samba | Samba | >= 4.5.0, < 4.5.10 |
| Samba | Samba | >= 4.6.0, < 4.6.4 |
| Debian | Debian Linux | 8.0 |
References
- https://www.debian.org/security/2017/dsa-3860Third Party Advisory
- https://www.securityfocus.com/bid/98636Third Party Advisory, VDB Entry
- https://www.securitytracker.com/id/1038552Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1270Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1271Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1272Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1273Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1390Third Party Advisory
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170524-0001/Third Party Advisory
- https://www.exploit-db.com/exploits/42060/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42084/Third Party Advisory, VDB Entry
- https://www.samba.org/samba/security/CVE-2017-7494.htmlPatch, Vendor Advisory
- https://www.debian.org/security/2017/dsa-3860Third Party Advisory
- https://www.securityfocus.com/bid/98636Third Party Advisory, VDB Entry
- https://www.securitytracker.com/id/1038552Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1270Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1271Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1272Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1273Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1390Third Party Advisory
- https://security.gentoo.org/glsa/201805-07Third Party Advisory
- https://security.netapp.com/advisory/ntap-20170524-0001/Third Party Advisory
- https://www.exploit-db.com/exploits/42060/Third Party Advisory, VDB Entry
- https://www.exploit-db.com/exploits/42084/Third Party Advisory, VDB Entry
- https://www.samba.org/samba/security/CVE-2017-7494.htmlPatch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7494US Government Resource
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2017-7494?
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.
How severe is CVE-2017-7494?
CVE-2017-7494 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 99.45% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.
How do I fix CVE-2017-7494?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2017-7494?
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Scan your code nowSource: NVD / NIST