CVE-2021-43457

HIGH

bVPN 2.5.1 - Unquoted Service Path in waselvpnserv

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-43457. PoCs published by Mohammed Alshehri.

AI-analyzed exploit summary This exploit describes an unquoted service path vulnerability in bVPN 2.5.1, where the service path contains spaces and is not enclosed in quotes, potentially allowing privilege escalation via executable placement in the path.

Description

An Unquoted Service Path vulnerability exists in bVPN 2.5.1 via a specially crafted file in the waselvpnserv service path.

Exploits (1)

exploitdb WRITEUP
by Mohammed Alshehri · textlocalwindows
https://www.exploit-db.com/exploits/49632

This exploit describes an unquoted service path vulnerability in bVPN 2.5.1, where the service path contains spaces and is not enclosed in quotes, potentially allowing privilege escalation via executable placement in the path.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Trivial
Reliability
Reliable
Target: bVPN 2.5.1
Auth required
Prerequisites: Local access to the system · Ability to write to the root of C: or another directory in the unquoted path
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory x_refsource_misc
https://github.com/M507/Miner
Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/49632
Third Party Advisory, VDB Entry x_refsource_misc
https://exchange.xforce.ibmcloud.com/vulnerabilities/197938

Scores

CVSS v3 7.8
EPSS 0.0031
EPSS Percentile 21.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-428
Status published
Products (1)
bvpn/bvpn 2.5.1
Published Apr 04, 2022
Tracked Since Feb 18, 2026