What is the CVSS score of CVE-2022-20797?

CVE-2022-20797 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H. EPSS exploitation probability: 1.5%.

Secure Network Analytics CVE-2022-20797

CRITICAL

Improper Input Validation (CWE-20)

2022-05-27 psirt@cisco.com

Cisco Code Injection Secure Network Analytics

9.1

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-20 OWASP Top 10:2025 A05:2025 - Injection ASVS 5.0 V2 - Validation and Business Logic Input validation, allowlisting
Impact	CVSS score of 9.1 (CRITICAL). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 1.5% exploitation probability (EPSS)

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AnalysisAI

A vulnerability in the web-based management interface of Cisco Secure Network Analytics, formerly Cisco Stealthwatch Enterprise, could allow an authenticated, remote attacker to execute arbitrary. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, 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.

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. A vulnerability in the web-based management interface of Cisco Secure Network Analytics, formerly Cisco Stealthwatch Enterprise, could allow an authenticated, remote attacker to execute arbitrary commands as an administrator on the underlying operating system. This vulnerability is due to insufficient user input validation by the web-based management interface of the affected software. An attacker could exploit this vulnerability by injecting arbitrary commands in the web-based management interface. A successful exploit could allow the attacker to make configuration changes on the affected device or cause certain services to restart unexpectedly. Affected products include: Cisco Secure Network Analytics.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.1 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

DescriptionNVD

A vulnerability in the web-based management interface of Cisco Secure Network Analytics, formerly Cisco Stealthwatch Enterprise, could allow an authenticated, remote attacker to execute arbitrary commands as an administrator on the underlying operating system. This vulnerability is due to insufficient user input validation by the web-based management interface of the affected software. An attacker could exploit this vulnerability by injecting arbitrary commands in the web-based management interface. A successful exploit could allow the attacker to make configuration changes on the affected device or cause certain services to restart unexpectedly.

Threat Intelligence Overview

EPSS Score

1.5%

Top 29% 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 CRITICAL

CISA KEV No

Public POC No

EPSS 1.5%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

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

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +2

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.