CVE-2021-41593
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
- Record
CVE-2021-41593- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE List No score
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
- Record
CVE-2021-41593- Updated
- 2026-11-02
EUVDEUVD-2021-28607 No score
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
- Record
EUVD-2021-28607- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gjfm-mwrf-wg3p
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
- Record
GHSA-gjfm-mwrf-wg3p- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
- Record
CVE-2021-41593- CVSS 3.1
- 8.6 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-41593 is a high vulnerability (CVSS 8.6) in Lightning Network Daemon Project Network Daemon, published October 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.93%, the 80th percentile. No source names a fixed version.
References
lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.html
bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixing
github.com/lightningnetwork/lnd/releases/tag/v0.13.3-beta
nvd.nist.gov/vuln/detail/CVE-2021-41593