What is the CVSS score of CVE-2024-22340?

CVE-2024-22340 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2024-22340?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

IBM CVE-2024-22340

MEDIUM

Observable Timing Discrepancy (CWE-208)

2025-03-11 psirt@us.ibm.com

Information Disclosure IBM

6.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Weakness	CWE CWE-208 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V6 - Authentication Timing attack prevention
Impact	CVSS 6.5 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: None. Exploitable via remote/network.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to a remote attacker to obtain sensitive information during the creation of ECDSA s.

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

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

IBM's Common Cryptographic Architecture (versions 7.0.0-7.5.51) contains a timing vulnerability in ECDSA signature generation that leaks sensitive information through how long the operation takes to complete. Attackers can exploit this timing difference to deduce the private signing key through repeated observations of signature creation times. Any organization using affected IBM CCA versions for cryptographic operations is at risk of having their ECDSA private keys compromised.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 19:52 CVSS 6.5

IBM Common Cryptographic Architecture 7.0.0 versions up to 7.5.51 contains a vulnerability that allows attackers to a remote attacker to obtain sensitive information during the creation of ECDSA s (CVSS 6.5).

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affected ProductsAI

Product: IBM Common Cryptographic Architecture 7.0.0. Versions: up to 7.5.51.

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

affects IBM Common Cryptographic Architecture 7.0.0. IBM Common Cryptographic Architecture 7.0.0 through 7.5.51

could allow a remote attacker to obtain sensitive information during the creation of ECDSA signatures to perform a timing-based attack.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM

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

High

Integrity

None

Availability

None

DescriptionCVE.org

IBM Common Cryptographic Architecture 7.0.0 through 7.5.51

could allow a remote attacker to obtain sensitive information during the creation of ECDSA signatures to perform a timing-based attack.

Executive ViewAI

Why It Matters

CVE-2024-22340 presents notable security risk rated CVSS 6.5. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Moderate

Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score

0.1%

Top 76% exploitable

Data Quality

3 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 0.1%

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

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.