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.

CVSS v4.0

8.5 HIGHCVSS: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:X/V:X/RE:X/U:X

CVSS v3.1

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

EPSS

0.12% chance of exploitation in the next 30 days, 2th percentile

Published

2026-01-23

Updated

2026-07-15

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/49588

References

• CVE Record
• NVD entry

Related

• CVE-2021-47888
• CVE-2021-47890
• CVE-2021-47887
• CVE-2021-47891
• CVE-2021-47886
• CVE-2021-47892