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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Samba Remote Code Execution Vulnerability.
- Added
- 30 Mar 2023
- Fix due (US federal)
- 20 Apr 2023
- Used by ransomware
- Known
Apply updates per vendor instructions.
Public exploit
2 references of the record are tagged as an exploit or proof of concept: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.
- 42084 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 42060 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Timeline
ID reserved
By redhat
- 55 days later
· 55 days later
Published
- 6 years later
· 6 years later
Added to CISA KEV
Known exploited, also by ransomware
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 99.4% · top 0.1% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
References (17)
- 98636 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3860 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 42084 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- RHSA-2017:1270 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.samba.org/samba/security/CVE-2017-7494.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 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 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2017:1390 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 1038552 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- RHSA-2017:1273 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2017:1271 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201805-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2017:1272 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://security.netapp.com/advisory/ntap-20170524-0001/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us (opens in a new tab)x_refsource_CONFIRMx_transferred
- 42060 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7494 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-7494)Record last updated .