What is the CVSS score of CVE-2020-27638?

CVE-2020-27638 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: 2.3%.

Is there a patch available for CVE-2020-27638?

Yes, a patch is available for CVE-2020-27638. Update the affected software to the latest version immediately.

Fastd CVE-2020-27638

HIGH

Reachable Assertion (CWE-617)

2020-10-22 cve@mitre.org

Denial Of Service Fastd Debian Linux Fedora

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, 2020 - 13:15 nvd

HIGH 7.5

DescriptionNVD

receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code.

AnalysisAI

receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-617. receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. Affected products include: Fastd Project Fastd, Debian Debian Linux, Fedoraproject Fedora.

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.