What is the CVSS score of CVE-2021-23364?

CVE-2021-23364 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:N/I:N/A:L. EPSS exploitation probability: 2.4%.

Is there a public PoC exploit available for CVE-2021-23364?

Yes, a public proof-of-concept exploit is available for CVE-2021-23364. Prioritise patching immediately. EPSS: 2.4%.

Is there a patch available for CVE-2021-23364?

Yes, a patch is available for CVE-2021-23364. Update the affected software to the latest version immediately.

Browserslist CVE-2021-23364

MEDIUM

Inefficient Regular Expression Complexity (ReDoS) (CWE-1333)

2021-04-28 report@snyk.io

Denial Of Service Browserslist

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:N/I:N/A:L

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:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Lifecycle Timeline

CVE Published

Apr 28, 2021 - 16:15 nvd

MEDIUM 5.3

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

5 npm packages depend on browserslist (3 direct, 2 indirect)

Ecosystem-wide dependent count for version 4.0.0.

DescriptionNVD

The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.

AnalysisAI

The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-1333. The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries. Affected products include: Browserslist Project Browserslist. Version information: before 4.16.5.

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.