CVE-2020-37037

HIGH

Avast SecureLine 5.5.522.0 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2020-37037. PoCs published by Roberto Piña.

AI-analyzed exploit summary This is a writeup describing an unquoted service path vulnerability in Avast SecureLine VPN 5.5.522.0. The vulnerability could allow local privilege escalation if an attacker can place an executable in a path that is executed due to improper quoting.

Description

Avast SecureLine 5.5.522.0 contains an unquoted service path vulnerability that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious code that would execute with LocalSystem account permissions during service startup.

Exploits (1)

exploitdb WRITEUP
by Roberto Piña · textlocalwindows
https://www.exploit-db.com/exploits/48249

This is a writeup describing an unquoted service path vulnerability in Avast SecureLine VPN 5.5.522.0. The vulnerability could allow local privilege escalation if an attacker can place an executable in a path that is executed due to improper quoting.

Classification
Writeup 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Theoretical
Target: Avast SecureLine VPN 5.5.522.0
Auth required
Prerequisites: Local access to the system · Ability to write to a directory in the unquoted path
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit, Third Party Advisory exploit
https://www.exploit-db.com/exploits/48249
Various Sources product
https://www.avast.com/

Scores

CVSS v3 7.8
EPSS 0.0015
EPSS Percentile 4.5%
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)
Avast/AVAST SecureLine 5.5.522.0
Published Feb 01, 2026
Tracked Since Feb 18, 2026