Is CVE-2020-9399 in the CISA KEV catalog?

No. CVE-2020-9399 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-9399?

CVE-2020-9399 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-9399?

CVE-2020-9399 has an EPSS score of 1.14% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-9399?

Upgrade antivirus for linux to 12.0 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2020-9399

MEDIUM

5.5

CVSS v3

NVD

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.

CWE-436

How to fix

Remediation Available

antivirus for linuxNVD

Affected:< 12.0Fixed in:12.0CVE-2020-9399derived from NVD

antivirus proNVD

Affected:< 12.0Fixed in:12.0CVE-2020-9399derived from NVD

antivirus pro plusNVD

Affected:< 12.0Fixed in:12.0CVE-2020-9399derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Exploit Intelligence

1.14%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.