CVE-2020-13657

MEDIUM
5.5
CVSS Score
Published: June 29, 2020 at 05:51 PM UTC
Updated: June 17, 2026 at 02:53 AM UTC
2 products affected across 1 vendorFree AntivirusAvg Antivirus

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 20.4
Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement
v < 20.4
Affected range stops below 20.4, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_CONFIRMRelease NotesVendor Advisory
https://forum.avast.com/index.php?topic=232423.0

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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