CVE-2021-35231: Unquoted Path (SMB Login) Vulnerability

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-25 · updated 2026-06-17
Weakness: CWE-428

Description

As a result of an unquoted service path vulnerability present in the Kiwi Syslog Server Installation Wizard, a local attacker could gain escalated privileges by inserting an executable into the path of the affected service or uninstall entry. Example vulnerable path: "Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Kiwi Syslog Server\Parameters\Application".

Affected products

SolarWinds Kiwi Syslog Server: before 9.8 — fixed in 9.8

How to fix

Upgrade to a fixed version: SolarWinds Kiwi Syslog Server 9.8. Check the vendor advisory for mitigations.

References

https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35231
https://documentation.solarwinds.com/en/success_center/kss/content/release_notes/kss_9-8_release_notes.htm
https://www.solarwinds.com/trust-center/security-advisories/cve-2021-35231

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