CVE-2017-7494Samba 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 the…
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It affects samba and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 30, 2023; federal agencies had to remediate by Apr 20, 2023, and it is known to be used in ransomware. Treat that date as your deadline.
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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
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-94
- Known exploited
- Added to CISA KEV Mar 30, 2023; federal remediation due Apr 20, 2023; known ransomware useApply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 99.45% (percentile 100)
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Samba samba samba:samba (from the name) | since 3.5.0 | CNA record |
samba samba samba:samba | from 3.5.0 before 4.4.0; from 4.4.0 before 4.4.14; from 4.5.0 before 4.5.10; from 4.6.0 before 4.6.4 | NVD |
debian debian_linux debian:debian_linux | 8.0 | NVD |
References
- http://www.securityfocus.com/bid/98636vdb-entry, x-refsource-bid, third-party-advisory
- http://www.debian.org/security/2017/dsa-3860vendor-advisory, x-refsource-debian, third-party-advisory
- https://www.exploit-db.com/exploits/42084/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- https://access.redhat.com/errata/RHSA-2017:1270vendor-advisory, x-refsource-redhat, third-party-advisory
- https://www.samba.org/samba/security/CVE-2017-7494.htmlx-refsource-confirm, patch, vendor-advisory
- 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-2018-095-01x-refsource-misc, third-party-advisory
- https://access.redhat.com/errata/RHSA-2017:1390vendor-advisory, x-refsource-redhat, third-party-advisory
- http://www.securitytracker.com/id/1038552vdb-entry, x-refsource-sectrack, third-party-advisory
- https://access.redhat.com/errata/RHSA-2017:1273vendor-advisory, x-refsource-redhat, third-party-advisory
- https://access.redhat.com/errata/RHSA-2017:1271vendor-advisory, x-refsource-redhat, third-party-advisory
- https://security.gentoo.org/glsa/201805-07vendor-advisory, x-refsource-gentoo, third-party-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_usx-refsource-confirm, third-party-advisory
- https://access.redhat.com/errata/RHSA-2017:1272vendor-advisory, x-refsource-redhat, third-party-advisory
- https://security.netapp.com/advisory/ntap-20170524-0001/x-refsource-confirm, third-party-advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_usx-refsource-confirm, third-party-advisory
- https://www.exploit-db.com/exploits/42060/exploit, x-refsource-exploit-db, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7494us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.