What is the CVSS score of CVE-2021-42836?

CVE-2021-42836 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 2.2%.

Is there a public PoC exploit available for CVE-2021-42836?

Yes, a public proof-of-concept exploit is available for CVE-2021-42836. Prioritise patching immediately. EPSS: 2.2%.

Is there a patch available for CVE-2021-42836?

Yes, a patch is available for CVE-2021-42836. Update the affected software to the latest version immediately.

Gjson CVE-2021-42836

HIGH

Uncontrolled Resource Consumption (CWE-400)

2021-10-22 cve@mitre.org

Denial Of Service Gjson

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Oct 22, 2021 - 18:15 nvd

HIGH 7.5

DescriptionNVD

GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.

AnalysisAI

GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack. Affected products include: Gjson Project Gjson. Version information: before 1.9.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.