What is the CVSS score of CVE-2026-24380?

CVE-2026-24380 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Metagauss EventPrime are affected by CVE-2026-24380?

A critical authorization flaw in EventPrime calendar management software allows attackers to bypass access controls and manipulate event data without proper credentials.

How to fix or mitigate CVE-2026-24380?

Within 24 hours: Identify all instances of EventPrime in your environment and assess exposure by reviewing access logs for suspicious activity. Within 7 days: Implement network segmentation to restrict EventPrime access to authorized users only, enable enhanced logging on affected systems, and communicate risk to stakeholders. Within 30 days: Monitor vendor channels closely for patch availability; conduct a security audit of EventPrime configurations and user access controls; evaluate alternative calendar management solutions.

Metagauss EventPrime CVE-2026-24380

MEDIUM

Missing Authorization (CWE-862)

2026-01-22 audit@patchstack.com

Authentication Bypass

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Severity Changed

Apr 23, 2026 - 15:43 NVD

HIGH MEDIUM

CVSS changed

Apr 23, 2026 - 15:43 NVD

8.8 (HIGH) 5.3 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 22, 2026 - 17:16 nvd

HIGH 8.8

DescriptionCVE.org

Missing Authorization vulnerability in Metagauss EventPrime eventprime-event-calendar-management allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects EventPrime: from n/a through <= 4.2.8.0.

AnalysisAI

Metagauss EventPrime eventprime-event-calendar-management is affected by missing authorization (CVSS 8.8).

Technical ContextAI

This vulnerability (CWE-862: Missing Authorization) affects Metagauss EventPrime eventprime-event-calendar-management. Missing Authorization vulnerability in Metagauss EventPrime eventprime-event-calendar-management allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects EventPrime: from n/a through <= 4.2.8.0.