9.8Critical KEV Used in ransomware

CVE-2017-7494Samba Remote Code Execution Vulnerability

Samba samba Published: 2017-05-30 21:00 (9 years ago)

Known exploited — Samba Remote Code Execution Vulnerability

CISA confirmed this vulnerability is used in real attacks on 30.03.2023. Remediation deadline for US federal agencies: 20.04.2023.

Required action: Apply updates per vendor instructions. 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.

Weakness (CWE): CWE-94

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

Vendor	Product	Versions
debian	debian linux	8.0
Samba	samba	since 3.5.0

References and patches

98636 vdb-entryThird Party AdvisoryVDB Entry
DSA-3860 vendor-advisoryThird Party Advisory
42084 exploitThird Party AdvisoryVDB Entry
RHSA-2017:1270 vendor-advisoryThird Party Advisory
https://www.samba.org/samba/security/CVE-2017-7494.html PatchVendor Advisory
https://download.schneider-electric.com/files?p_enDocType=Technical+leaflet&p_File_Name=SEVD-2018-095-01+Secu… Third Party Advisory
RHSA-2017:1390 vendor-advisoryThird Party Advisory
1038552 vdb-entryThird Party AdvisoryVDB Entry
RHSA-2017:1273 vendor-advisoryThird Party Advisory
RHSA-2017:1271 vendor-advisoryThird Party Advisory
GLSA-201805-07 vendor-advisoryThird Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03759en_us Third Party Advisory
RHSA-2017:1272 vendor-advisoryThird Party Advisory
https://security.netapp.com/advisory/ntap-20170524-0001/ Third Party Advisory
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbns03755en_us Third Party Advisory
42060 exploitThird Party AdvisoryVDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-7494 US Government Resource

CPE matches (NVD) (5)

cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 3.5.0 < 4.4.0
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 4.4.0 < 4.4.14
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 4.5.0 < 4.5.10
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 4.6.0 < 4.6.4
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS score

9.8Critical

Source: CISA-ADP · CVSS 3.1

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

All scores (4)

CISA-ADP	CVSS 3.1	9.8Critical
nvd	CVSS 3.1	9.8Critical
134c704f-9b21-4f2e-91b3-4a467353bcc0	CVSS 3.1	9.8Critical
nvd	CVSS 2.0	10.0High

EPSS (chance of exploitation in 30 days)

99.45%

higher than 100% of all CVEs

CISA assessment (SSVC)

Exploitation: active
Automatable: yes
Technical impact: total

Timeline

ID reserved2017-04-05
Published2017-05-30 21:00
Reached IP-DB2026-10-24 23:32
Added to KEV2023-03-30
Last updated2026-06-17 04:24

Assigned by (CNA): redhat
NVD status: Analyzed

View at source: CVE.org · NVD

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