What is the CVSS score of CVE-2021-43411?

CVE-2021-43411 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Is there a public PoC exploit available for CVE-2021-43411?

Yes, a public proof-of-concept exploit is available for CVE-2021-43411. Prioritise patching immediately. EPSS: 1.2%.

Is there a patch available for CVE-2021-43411?

Yes, a patch is available for CVE-2021-43411. Update the affected software to the latest version immediately.

Hurd CVE-2021-43411

HIGH

Race Condition (CWE-362)

2021-11-07 cve@mitre.org

Information Disclosure Race Condition Hurd

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Nov 07, 2021 - 18:15 nvd

HIGH 7.5

DescriptionNVD

An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access.

AnalysisAI

An issue was discovered in GNU Hurd before 0.9 20210404-9. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-362. An issue was discovered in GNU Hurd before 0.9 20210404-9. When trying to exec a setuid executable, there's a window of time when the process already has the new privileges, but still refers to the old task and is accessible through the old process port. This can be exploited to get full root access. Affected products include: Gnu Hurd. Version information: before 0.9.

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.