CVE-2021-41593
HIGH
8.6
CVSS Score
Published: October 4, 2021 at 04:54 PM UTC
Updated: June 17, 2026 at 04:08 AM UTC
1 product affected across 1 vendorLightning Network Daemon
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Severity
HIGH8.6
Exploit prediction
EPSS 2%
Description
Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 0.11.00.11.00.11.0 beta0.11.0 beta_rc10.11.0 beta_rc20.11.0 beta_rc30.11.0 beta_rc40.11.1 beta0.11.1 beta_rc10.11.1 beta_rc20.11.1 beta_rc30.11.1 beta_rc40.11.1 beta_rc50.12.0 beta0.12.0 beta_rc10.12.0 beta_rc20.12.0 beta_rc30.12.0 beta_rc40.12.0 beta_rc50.12.0 beta_rc60.12.1 beta0.12.1 beta_rc10.12.1 beta_rc20.12.1 beta_rc30.12.1 beta_rc40.12.1 beta_rc50.12.1 beta_rc60.13.0 beta0.13.0 beta_rc10.13.0 beta_rc20.13.0 beta_rc30.13.0 beta_rc40.13.0 beta_rc50.13.1 beta0.13.1 beta_rc10.13.1 beta_rc20.13.2 beta0.13.3 beta_rc2
Affected range stops below 0.11.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
x_refsource_MISCPress/Media CoverageThird Party Advisory
Source: [email protected]
https://bitcoinmagazine.com/technical/good-griefing-a-lingering-vulnerability-on-lightning-network-that-still-needs-fixingx_refsource_MISCRelease NotesThird Party Advisory
Source: [email protected]
https://github.com/lightningnetwork/lnd/blob/master/docs/release-notes/release-notes-0.13.3.mdx_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/lightningnetwork/lnd/releases/tag/v0.13.3-betax_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-May/002714.htmlx_refsource_MISCMailing ListVendor Advisory
Source: [email protected]
https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003257.htmlx_refsource_MISCExploitMailing ListVendor Advisory
Source: [email protected]
https://lists.linuxfoundation.org/pipermail/lightning-dev/2021-October/003264.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- HIGH
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-770
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