CVE-2021-47864

HIGH

OSAS Traverse Extension 11 - Path Traversal

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-47864. PoCs published by Johnny Tech.

AI-analyzed exploit summary This is a writeup detailing an unquoted service path vulnerability in OSAS Traverse Extension 11. The service path contains spaces and is not enclosed in quotes, potentially allowing local privilege escalation if an attacker can place a malicious executable in the path.

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.

Exploits (1)

exploitdb WRITEUP
by Johnny Tech · textlocalwindows
https://www.exploit-db.com/exploits/49698

This is a writeup detailing an unquoted service path vulnerability in OSAS Traverse Extension 11. The service path contains spaces and is not enclosed in quotes, potentially allowing local privilege escalation if an attacker can place a malicious executable in the path.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: OSAS Traverse Extension 11 x86
Auth required
Prerequisites: Local access to the system · Ability to write to the root of C:\
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 2.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-428
Status published
Products (1)
OSAS/OSAS Traverse Extension 11 x86
Published Jan 21, 2026
Tracked Since Feb 18, 2026