CVE-2024-34478

btcd before 0.24.0 does not correctly implement the consensus rules outlined in BIP 68 and BIP 112, making it susceptible to consensus failures. Specifically, it uses the transaction version as a signed integer when it is supposed to be treated as unsigned. There can be a chain split and loss of funds.

Published: 2024-05-05 Last update: 2025-08-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2024-34478 is rated Low Risk (38.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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

Exploit prediction scoring system (EPSS) score for CVE-2024-34478

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 0.27% 0.08% -0.19%
2 2025-11-18 0.11% 0.27% +0.16%
3 2025-06-13 0.11%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-34478

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N 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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-34478

GitHub Security Advisory for CVE-2024-34478

GHSA-3jgf-r68h-xfqm · Severity: medium · Ecosystem: go — btcd susceptible to consensus failures

Affected software / configurations for CVE-2024-34478

Vendor Product Version Raw CPE
btcd_project btcd < 0.24.0 cpe:2.3:a:btcd_project:btcd:*:*:*:*:*:*:*:*

References for CVE-2024-34478

cvelogic Threat Intelligence