CVE-2021-47889
Softros LAN Messenger 9.6.4 - 'SoftrosSpellChecker' Unquoted Service Path
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Softros LAN Messenger 9.6.4 - 'SoftrosSpellChecker' Unquoted Service Path
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.
- Record
CVE-2021-47889- CVSS 4.0
- 8.5 High
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 - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-428
- Updated
- 2026-11-02
EUVDEUVD-2026-4305
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.
- Record
EUVD-2026-4305- CVSS 4.0
- 8.5 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-2wg5-9j86-2mmq
Softros LAN Messenger 9.6.4 contains an unquoted service path vulnerability in the...
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.
- Record
GHSA-2wg5-9j86-2mmq- CVSS 4.0
- 8.5 High
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:X/V:X/RE:X/U:X - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-428
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-47889- CVSS 4.0
- 8.5 High
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:X/V:X/RE:X/U:X - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-428
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-47889 is a high vulnerability (CVSS 8.5) in Softros Systems Lan Messenger, published January 23, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.