CVE-2021-41591

Public Exploit

Description

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

Category

9.4
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.59%
Vendor Advisory linuxfoundation.org Vendor Advisory linuxfoundation.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.html mailing list vendor advisory
https://bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing press/media coverage
https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.html exploit vendor advisory
https://github.com/ACINQ/eclair/pull/1985 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-41591?
CVE-2021-41591 has been scored as a critical severity vulnerability.
How to fix CVE-2021-41591?
To fix CVE-2021-41591, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-41591 being actively exploited in the wild?
It is possible that CVE-2021-41591 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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