CVE Vulnerability

CVE-2020-13657

An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://forum.avast.com/index.php?topic=234638.0 Vendor Advisory
https://forum.avast.com/index.php?topic=232423.0 Release Notes Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:avast:avg_antivirus:*:*:*:*:free:*:*:*
cpe:2.3:a:avast:free_antivirus:*:*:*:*:*:*:*:*
Information

Published : 2020-06-29 06:15

Updated : 2021-07-21 11:39

NVD link : CVE-2020-13657

Mitre link : CVE-2020-13657

Products Affected
No products.
CWE
NVD-CWE-noinfo