What’s Vulnerable › Vulnerabilities

CVE-2021-47864: OSAS Traverse Extension 11 - 'travextensionhostsvc' Unquoted Service Path

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-21 · updated 2026-06-17
• Weakness: CWE-428

Description

OSAS Traverse Extension 11 contains an unquoted service path vulnerability in the TravExtensionHostSvc service running with LocalSystem privileges. Attackers can exploit the unquoted path to inject and execute malicious code by placing executable files in the service's path, potentially gaining elevated system access.

Affected products

• OSAS Traverse Extension: 11 x86

References

• https://web.archive.org/web/20200817150522/https://www.osas.com/
• https://www.exploit-db.com/exploits/49698
• https://www.vulncheck.com/advisories/osas-traverse-extension-travextensionhostsvc-unquoted-service-path

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