btcd before 0.23.2, as used in Lightning Labs lnd before 0.15.2-beta and other Bitcoin-related products, mishandles witness size checking.
CVE-2022-44797
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.3% (68th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 60EG Risk 60/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation1% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 1.3%
- EPSS %ILE
- 69th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
November 7, 2022
Last Modified
May 1, 2025
Advisory Details (4)
Auto-updated Oct 10, 2026lnd v0.15.2-beta
Patch available: lightningnetwork/lnd v0.15.2-beta
https://github.com/lightningnetwork/lnd/releases/tag/v0.15.2-beta[bug]: Fail to chain sync on `testnet3` & `mainnet` errors relating to: script witness item is larger than the max allowed size · Issue #7002 · lightningnetwork/lnd · GitHub
https://github.com/lightningnetwork/lnd/issues/7002btcd v0.23.2
Patch available: btcsuite/btcd v0.23.2
https://github.com/btcsuite/btcd/releases/tag/v0.23.2wire: remove erroneous witness size check in wire parsing
Fix merged in btcsuite/btcd PR #1896 on 2022-10-10 — awaiting tagged release
https://github.com/btcsuite/btcd/pull/1896Affected Packages
(2 across 1 ecosystem)
Go(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| github.com/btcsuite/btcd | — |
| — |
| github.com/lightningnetwork/lnd | — |
| — |
Data Freshness Timeline
(refreshed 7× in last 7d / 26× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 178 total refreshes for this CVE.
- 2026-10-09 20:04 UTCEPSS rescore
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- 2026-08-03 06:27 UTCOSV refresh
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- 2026-07-23 02:15 UTCEG score recompute
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- 2026-07-22 14:06 UTCEPSS rescore
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Related CVEs(same product)
Same product
5 shownGo:github.com/btcsuite/btcd · Go:github.com/lightningnetwork/lnd
Frequently asked(5)
What is CVE-2022-44797?
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What is the CVSS score of CVE-2022-44797?
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