What is the CVSS score of CVE-2021-41592?

CVE-2021-41592 has a CVSS 3.1 base score of 9.4 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H. EPSS exploitation probability: 1.5%.

C Lightning CVE-2021-41592

CRITICAL

Allocation of Resources Without Limits or Throttling (CWE-770)

2021-10-04 cve@mitre.org

Denial Of Service C Lightning

9.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.4 CRITICAL

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Oct 04, 2021 - 17:15 nvd

CRITICAL 9.4

DescriptionNVD

Blockstream c-lightning through 0.10.1 allows loss of funds because of dust HTLC exposure.

AnalysisAI

Blockstream c-lightning through 0.10.1 allows loss of funds because of dust HTLC exposure. Rated critical severity (CVSS 9.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. Blockstream c-lightning through 0.10.1 allows loss of funds because of dust HTLC exposure. Affected products include: Elementsproject C-Lightning. Version information: through 0.10.1.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Set resource limits, implement rate limiting, validate input sizes.