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CVE-2022-44797

30
FAUCET Score

CVE-2022-44797 is a critical vulnerability affecting btcd before version 0.23.2, including its use in Lightning Labs lnd before 0.15.2-beta, stemming from improper witness size checking. With a CVSS score of 9.8, it presents a severe risk due to its network-based attack vector, low complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there's minimal community discussion or media coverage, the high severity warrants immediate patching.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.23.2CPE matchmatch criteria
cpe:2.3:a:btcd_project:btcd:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
64.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0120 is in the 51st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/lightningnetwork/lndFixed in: 0.15.2-beta
gopatch availablevia ghsa
Product: github.com/btcsuite/btcdFixed in: 0.23.2

Vendor Advisories (1)

goGHSA-2chg-86hq-7w38critical

btcd mishandles witness size checking

Nov 7, 2022

References

github.com / btcsuite/btcd/pull/1896
PatchThird Party Advisory
github.com / btcsuite/btcd/releases/tag/v0.23.2
Release NotesThird Party Advisory
github.com / lightningnetwork/lnd/issues/7002
ExploitIssue TrackingThird Party Advisory
github.com / lightningnetwork/lnd/releases/tag/v0.15.2-beta
Release NotesThird Party Advisory