CVE Tools
Sign in

CVE-2020-9399

Published: Feb 28, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-436
5.5MEDIUM
NVD MITRE
EPSS Score
1.2%
Top 35.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

The Avast AV parsing engine allows virus-detection bypass via a crafted ZIP archive. This affects versions before 12 definitions 200114-0 of Antivirus Pro, Antivirus Pro Plus, and Antivirus for Linux.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-436

Affected Products

avast
commercial·CZaka avast free antivirus, avast antivirus
antivirus for linuxOn-premSecurity Product
Security Products / endpoint-av-edr
antivirus proOn-premSecurity Product
Security Products / endpoint-av-edr
antivirus pro plusOn-premSecurity Product
Security Products / endpoint-av-edr
and 1 more affected products View all →

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://blog.zoller.lu/p/tzo-23-2020-avast-generic-archive.html
blog.zoller.lu
https://seclists.org/fulldisclosure/2020/Feb/35
seclists.org

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2020-9399 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows