What is the CVSS score of CVE-2020-4324?

CVE-2020-4324 has a CVSS 3.1 base score of 4.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N. EPSS exploitation probability: 1.2%.

Security Secret Server CVE-2020-4324

MEDIUM

Improper Input Validation (CWE-20)

2020-09-23 psirt@us.ibm.com

Authentication Bypass IBM Security Secret Server

4.3

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 4.3 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 1.2% exploitation probability (EPSS)

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AnalysisAI

IBM Security Secret Server proir to 10.9 could allow a remote attacker to bypass security restrictions, caused by improper input validation. Rated medium severity (CVSS 4.3), 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.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified under CWE-20. IBM Security Secret Server proir to 10.9 could allow a remote attacker to bypass security restrictions, caused by improper input validation. IBM X-Force ID: 177515. Affected products include: Ibm Security Secret Server.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 4.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

DescriptionNVD

IBM Security Secret Server proir to 10.9 could allow a remote attacker to bypass security restrictions, caused by improper input validation. IBM X-Force ID: 177515.

Threat Intelligence Overview

EPSS Score

1.2%

Top 34% 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 MEDIUM

CISA KEV No

Public POC No

EPSS 1.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

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

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +22

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:ibm:security_secret_server:*:*:*:*:*:*:*:*

More in Security Secret Server

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IBM Security Secret Server 10.6 could allow a remote attacker to conduct phishing attacks, using an open redirect attack

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IBM Security Secret Server 10.6 could allow a remote attacker to obtain sensitive information, caused by the failure to

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IBM Security Secret Server 10.7 could allow a remote attacker to obtain sensitive information, caused by the failure to

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IBM Security Secret Server up to 11.0 stores sensitive information in URL parameters. Rated medium severity (CVSS 5.3),

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IBM Security Secret Server up to 11.0 could allow an attacker to enumerate usernames due to improper input validation. R

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IBM Security Secret Server 10.7 could disclose sensitive information included in installation files to an unauthorized u

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IBM Security Secret Server 10.7 could allow a remote attacker to obtain sensitive information when a detailed technical

CVE-2020-4327 MEDIUM This Month

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IBM Security Secret Server 10.7 could allow a remote attacker to obtain sensitive information when a detailed technical

CVE-2020-4842 MEDIUM This Month

4.9 Dec 21

IBM Security Secret Server 10.6 could allow a remote attacker to obtain sensitive information when a detailed technical

CVE-2021-20508 MEDIUM This Month

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Same weakness CWE-20 – Improper Input Validation

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CVE-2023-22515 CRITICAL POC

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CVE-2009-0927 HIGH POC

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CVE-2017-9791 CRITICAL POC

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CVE-2017-15944 CRITICAL POC

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CVE-2019-0604 CRITICAL POC

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Same technique Authentication Bypass

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CVE-2015-3306 CRITICAL POC

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CVE-2012-4681 CRITICAL POC

9.8

CVE-2013-2465 CRITICAL POC

9.8

CVE-2011-3544 CRITICAL POC

9.8

CVE-2022-40684 CRITICAL POC

9.8

CVE-2025-61882 CRITICAL POC

9.8

CVE-2024-0012 CRITICAL POC

9.3

References

Advisories & patches

ADVISORY https://exchange.xforce.ibmcloud.com/vulnerabilities/177515 ADVISORY https://www.ibm.com/support/pages/node/6336361

Search Externally

GitHub PoC

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