PatchTheCVECVE-2021-27185: The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.
CVE-2021-27185 is a critical-severity flaw (CVSS 9.8) affecting samba-client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.
Why this priority
- Critical severity
- EPSS top 8%: very likely to be exploited
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 4.8% (top 8%) |
| CISA exploited list | No |
| Weakness | CWE-77 |
| Published | 2021-02-10 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-27185?
samba-client: upgrade to 4.0.0. Exact commands for each OS are on this page.
Is CVE-2021-27185 being exploited?
CVE-2021-27185 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-27185 affect?
CVE-2021-27185 affects samba-client. Severity is critical (CVSS 9.8). The samba-client package before 4.0.0 for Node.js allows command injection because of the use of process.exec.
How urgent is CVE-2021-27185?
Priority 67/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action
Software pages
Node.js vulnerabilities · Samba vulnerabilities