What is the CVSS score of CVE-2021-37786?

CVE-2021-37786 has a CVSS 3.1 base score of 4.6 (Medium). CVSS vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.2%.

Is there a public PoC exploit available for CVE-2021-37786?

Yes, a public proof-of-concept exploit is available for CVE-2021-37786. Prioritise patching immediately. EPSS: 0.2%.

Covid Certificate CVE-2021-37786

MEDIUM

Improper Handling of Exceptional Conditions (CWE-755)

2021-09-27 cve@mitre.org

Apple Microsoft Denial Of Service Covid Certificate

4.6

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.6 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Sep 27, 2021 - 14:15 nvd

MEDIUM 4.6

DescriptionNVD

Certain Federal Office of Information Technology Systems and Telecommunication FOITT products are affected by improper handling of exceptional conditions. This affects COVID Certificate App IOS 2.2.0 and below affected, patch in progress and COVID Certificate Check App IOS 2.2.0 and below affected, patch in progress. A denial of service (physically proximate) could be caused by scanning a crafted QR code.

AnalysisAI

Certain Federal Office of Information Technology Systems and Telecommunication FOITT products are affected by improper handling of exceptional conditions. Rated medium severity (CVSS 4.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-755. Certain Federal Office of Information Technology Systems and Telecommunication FOITT products are affected by improper handling of exceptional conditions. This affects COVID Certificate App IOS 2.2.0 and below affected, patch in progress and COVID Certificate Check App IOS 2.2.0 and below affected, patch in progress. A denial of service (physically proximate) could be caused by scanning a crafted QR code. Affected products include: Bag Covid Certificate.

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.