Vulnerability Details : 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.
Vulnerability category: Gain privilege
Products affected by CVE-2020-13657
- cpe:2.3:a:avast:free_antivirus:*:*:*:*:*:*:*:*
- cpe:2.3:a:avast:avg_antivirus:*:*:*:*:free:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-13657
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-13657
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:P/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
1.8
|
3.6
|
NIST |
References for CVE-2020-13657
-
https://forum.avast.com/index.php?topic=232423.0
Release history with notes (2020)Release Notes;Vendor Advisory
-
https://forum.avast.com/index.php?topic=234638.0
NEW Avast Version 20.4 (June 2020)Vendor Advisory
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