CVE-2021-47891

CRITICAL 9.8CVE-2021-47891 · Published 23/01/2026 · updated 17/06/2026

In short

CVE-2021-47891 is a CRITICAL (CVSS 9.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.95%, higher than 61.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

Description

Unified Remote 3.9.0.2463 contains a remote code execution vulnerability that allows attackers to send crafted network packets to execute arbitrary commands. Attackers can exploit the service by connecting to port 9512 and sending specially crafted packets to open a command prompt and download and execute malicious payloads.

References

exploit-db.com/exploits/49587
unifiedremote.com
unifiedremote.com/download
vulncheck.com/advisories/unified-remote-remote-code-execution

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