What is the CVSS score of CVE-2021-41591?

CVE-2021-41591 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: 1.7%.

Is there a public PoC exploit available for CVE-2021-41591?

Yes, a public proof-of-concept exploit is available for CVE-2021-41591. Prioritise patching immediately. EPSS: 1.7%.

Is there a patch available for CVE-2021-41591?

Yes, a patch is available for CVE-2021-41591. Update the affected software to the latest version immediately.

Eclair CVE-2021-41591

CRITICAL

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

2021-10-04 cve@mitre.org

Denial Of Service Eclair

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

ACINQ Eclair before 0.6.3 allows loss of funds because of dust HTLC exposure.

AnalysisAI

ACINQ Eclair before 0.6.3 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. Public exploit code 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. ACINQ Eclair before 0.6.3 allows loss of funds because of dust HTLC exposure. Affected products include: Acinq Eclair. Version information: before 0.6.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.