What is the CVSS score of CVE-2021-27189?

CVE-2021-27189 has a CVSS 3.1 base score of 5.9 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.0%.

Is there a patch available for CVE-2021-27189?

Yes, a patch is available for CVE-2021-27189. Update the affected software to the latest version immediately.

Canadian Shield CVE-2021-27189

MEDIUM

Improper Certificate Validation (CWE-295)

2021-02-23 cve@mitre.org

Apple Information Disclosure Canadian Shield

5.9

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.9 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Feb 23, 2021 - 00:15 nvd

MEDIUM 5.9

DescriptionNVD

The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation.

AnalysisAI

The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required.

Technical ContextAI

This vulnerability is classified under CWE-295. The CIRA Canadian Shield app before 4.0.13 for iOS lacks SSL Certificate Validation. Affected products include: Cira Canadian Shield. Version information: before 4.0.13.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.