What is the CVSS score of CVE-2021-29940?

CVE-2021-29940 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.3%.

Is there a public PoC exploit available for CVE-2021-29940?

Yes, a public proof-of-concept exploit is available for CVE-2021-29940. Prioritise patching immediately. EPSS: 1.3%.

Through CVE-2021-29940

CRITICAL

Double Free (CWE-415)

2021-04-01 cve@mitre.org

Information Disclosure Through

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 01, 2021 - 05:15 nvd

CRITICAL 9.8

DescriptionNVD

An issue was discovered in the through crate through 2021-02-18 for Rust. There is a double free (in through and through_and) upon a panic of the map function.

AnalysisAI

An issue was discovered in the through crate through 2021-02-18 for Rust. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-415. An issue was discovered in the through crate through 2021-02-18 for Rust. There is a double free (in through and through_and) upon a panic of the map function. Affected products include: Through Project Through. Version information: through 2021.

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.