PT-2026-3816 · Osas · Osas Traverse Extension

Tech Johnny · Published 2026-01-21 · Updated 2026-01-21 · CVE-2021-47864

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OSAS Traverse Extension 11

Description The TravExtensionHostSvc service, which runs with LocalSystem privileges, contains an unquoted service path. This allows attackers to inject and execute malicious code by placing executable files in the service path, potentially leading to elevated system access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-428

Related Identifiers

CVE-2021-47864

Affected Products

Osas Traverse Extension

References · 4

• 🔥 https://exploit-db.com/exploits/49698 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47864 · Security Note
• https://web.archive.org/web/20200817150522/https://osas.com · Note
• https://vulncheck.com/advisories/osas-traverse-extension-travextensionhostsvc-unquoted-service-path · Note