What is the CVSS score of CVE-2021-43611?

CVE-2021-43611 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: 1.2%.

Is there a patch available for CVE-2021-43611?

Yes, a patch is available for CVE-2021-43611. Update the affected software to the latest version immediately.

Belle Sip CVE-2021-43611

HIGH

Improper Resource Shutdown or Release (CWE-404)

2021-11-12 cve@mitre.org

Denial Of Service Belle Sip

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

Nov 12, 2021 - 22:15 nvd

HIGH 7.5

DescriptionNVD

Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via " \ " in the display name of a From header.

AnalysisAI

Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via " \ " in the display name of a From header. 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-404. Belledonne Belle-sip before 5.0.20 can crash applications such as Linphone via " \ " in the display name of a From header. Affected products include: Linphone Belle-Sip. Version information: before 5.0.20.

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.