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Vulnerability record · CVE-2021-47889 · published 23 January 2026

CVE-2021-47889: Unquoted search path vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.14% · top 97.4% CWE-428 · Unquoted search path Deferred
8.5CVSS 4.0 base score
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.exploit-db.com/exploits/49588
https://www.softros.com/
https://www.vulncheck.com/advisories/softros-lan-messenger-softrosspellchecker-unquoted-service-path

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Source: NIST National Vulnerability Database (record CVE-2021-47889), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.