What is the CVSS score of CVE-2022-40023?

CVE-2022-40023 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: 1.7%.

Is there a public PoC exploit available for CVE-2022-40023?

Yes, a public proof-of-concept exploit is available for CVE-2022-40023. Prioritise patching immediately. EPSS: 1.7%.

Is there a patch available for CVE-2022-40023?

Yes, a patch is available for CVE-2022-40023. Update the affected software to the latest version immediately.

Mako CVE-2022-40023

HIGH

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

2022-09-07 cve@mitre.org

Denial Of Service Mako Debian Linux

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

Sep 07, 2022 - 13:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

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

6 pypi packages depend on mako (6 direct, 0 indirect)

Ecosystem-wide dependent count for version 1.2.2.

DescriptionNVD

Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.

AnalysisAI

Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. 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 under CWE-1333. Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin. Affected products include: Sqlalchemy Mako, Debian Debian Linux. Version information: before 1.2.2.

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.