What is the CVSS score of CVE-2020-9362?

CVE-2020-9362 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.5%.

Total Security CVE-2020-9362

HIGH

Interpretation Conflict (CWE-436)

2020-02-24 cve@mitre.org

Authentication Bypass Google Internet Security Total Security Antivirus Pro Antivirus For Server Home Security Total Security Multi Device Quickheal

7.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-436 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V4 - API and Web Service Interpretation consistency
Impact	CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required.
Exploit ScenarioDerived	Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 1.5% exploitation probability (EPSS)

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AnalysisAI

The Quick Heal AV parsing engine (November 2019) allows virus-detection bypass via a crafted GPFLAG in a ZIP archive. Rated high severity (CVSS 7.8), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-436. The Quick Heal AV parsing engine (November 2019) allows virus-detection bypass via a crafted GPFLAG in a ZIP archive. This affects Total Security, Home Security, Total Security Multi-Device, Internet Security, Total Security for Mac, AntiVirus Pro, AntiVirus for Server, and Total Security for Android. Affected products include: Quickheal Antivirus For Server, Quickheal Antivirus Pro, Quickheal Home Security, Quickheal Internet Security, Quickheal Total Security.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

The Quick Heal AV parsing engine (November 2019) allows virus-detection bypass via a crafted GPFLAG in a ZIP archive. This affects Total Security, Home Security, Total Security Multi-Device, Internet Security, Total Security for Mac, AntiVirus Pro, AntiVirus for Server, and Total Security for Android.

Threat Intelligence Overview

EPSS Score

1.5%

Top 28% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 1.5%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation· derived

None

System Exposure· derived

Small

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +39

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:quickheal:antivirus_for_server:2019-11:*:*:*:*:*:*:*

cpe:2.3:a:quickheal:antivirus_pro:2019-11:*:*:*:*:*:*:*

cpe:2.3:a:quickheal:home_security:2019-11:*:*:*:*:*:*:*

cpe:2.3:a:quickheal:internet_security:2019-11:*:*:*:*:*:*:*

cpe:2.3:a:quickheal:total_security:2019-11:*:*:*:*:-:*:*

cpe:2.3:a:quickheal:total_security:2019-11:*:*:*:*:android:*:*

cpe:2.3:a:quickheal:total_security:2019-11:*:*:*:*:mac_os:*:*

cpe:2.3:a:quickheal:total_security_multi-device:2019-11:*:*:*:*:*:*:*

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References

Advisories & patches

REF http://packetstormsecurity.com/files/156580/QuickHeal-Generic-Malformed-Archive-Bypass.html REF http://seclists.org/fulldisclosure/2020/Mar/14 REF https://blog.zoller.lu/p/from-low-hanging-fruit-department_24.html REF https://blog.zoller.lu/p/tzo-20-2020-quickheal-malformed-archive.html

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