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CVE-2021-27185

31
FAUCET Score

CVE-2021-27185 is a critical command injection vulnerability affecting the Node.js samba-client package prior to version 4.0.0, stemming from its use of process.exec. With a CVSS score of 9.8, this flaw allows unauthenticated remote attackers to execute arbitrary commands with high impact on confidentiality, integrity, and availability. Despite its high severity and EPSS score, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.0CPE matchmatch criteria
cpe:2.3:a:samba-client_project:samba-client:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.83%
Probability of exploitation in next 30 days
EPSS Percentile
91.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0483 is in the 85th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: samba-clientFixed in: 4.0.0

Vendor Advisories (1)

npmGHSA-r3j7-x2g5-9gx6critical

Command injection in samba-client

Feb 11, 2021

References

advisory.checkmarx.net / advisory/CX-2021-4302
ExploitThird Party Advisory
github.com / eflexsystems/node-samba-client/commit/5bc3bbad9b8d02243bc861a11ec73f788fbb1235
PatchThird Party Advisory
github.com / eflexsystems/node-samba-client/releases/tag/4.0.0
Release NotesThird Party Advisory
security.netapp.com / advisory/ntap-20210319-0002
Third Party Advisory
npmjs.com / package/samba-client
ProductThird Party Advisory