CVE-2021-41593

Exp

Lightning Labs lnd before 0.13.3-beta allows loss of funds because of dust HTLC exposure.

Published: 2021-10-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-41593 is rated High Exploit Risk (74.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.72%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2021-41593

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2021-41593

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 1.01% 0.72% -0.29%
2 2025-11-18 0.72% 1.01% +0.29%
3 2025-05-23 — 0.72% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-41593

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.6 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 3.9 4.7 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2021-41593

Affected software / configurations for CVE-2021-41593

Vendor Product Version Raw CPE
lightning_network_daemon_project lightning_network_daemon < 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:*:*:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:-:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.0:beta_rc4:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta_rc4:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.11.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.11.1:beta_rc5:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc4:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc5:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.0:beta_rc6:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc4:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc5:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.12.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.12.1:beta_rc6:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta_rc3:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta_rc4:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.0 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.0:beta_rc5:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.1:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.1:beta_rc1:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.1 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.1:beta_rc2:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.2 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.2:beta:*:*:*:*:*:*
lightning_network_daemon_project lightning_network_daemon 0.13.3 cpe:2.3:a:lightning_network_daemon_project:lightning_network_daemon:0.13.3:beta_rc2:*:*:*:*:*:*

References for CVE-2021-41593

cvelogic Threat Intelligence