What is CVE-2021-47889?

CVE-2021-47889 is a high-severity vulnerability in Softros Systems Lan Messenger, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-23.

How severe is CVE-2021-47889?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Softros Systems Lan Messenger

CVE-2021-47889

Softros LAN Messenger 9.6.4 contains an unquoted service path vulnerability in the SoftrosSpellChecker service that allows local attackers to potentially execute arbitrary code. Attackers can exploit the unquoted path in 'C:\Program Files (x86)\Softros Systems\Softros Messenger\Spell Checker\' to inject malicious executables and escalate privileges.

EPSS: 0.001 (2.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Softros Systems Lan Messenger — versions 9.6.4

Weakness classification (CWE)

CWE-428 — Unquoted Search Path or Element

References

ExploitDB-49588 (exploit)
Vendor Homepage (product)
VulnCheck Advisory: Softros LAN Messenger 9.6.4 - 'SoftrosSpellChecker' Unquoted Service Path (third-party-advisory)

Frequently asked questions

What is CVE-2021-47889?: CVE-2021-47889 is a high-severity vulnerability in Softros Systems Lan Messenger, classified under Unquoted Search Path or Element. CVSS score: 7.8/10. Published 2026-01-23.
How severe is CVE-2021-47889?: High severity. CVSS v3 base score is 7.8 out of 10.