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CVE-2017-12842

27
FAUCET Score

CVE-2017-12842 describes a vulnerability in Bitcoin Core versions prior to 0.14 that allows an attacker to forge ostensibly valid SPV proofs for non-existent payments to SPV wallet users. With a CVSS score of 7.5 (High), this vulnerability has a network attack vector and low complexity, leading to a high integrity impact by deceiving autonomous systems reliant solely on SPV proofs for large transactions. While theoretically impactful, the attack cost exceeds a million dollars, making it impractical for most scenarios. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.14.0CPE matchmatch criteria
cpe:2.3:a:bitcoin:bitcoin_core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.16%
Probability of exploitation in next 30 days
EPSS Percentile
80.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0216 is in the 65th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

bitslog.wordpress.com / 2018/06/09/leaf-node-weakness-in-bitcoin-merkle-tree-design
Third Party Advisory
en.bitcoin.it / wiki/Common_Vulnerabilities_and_Exposures
Vendor Advisory
lists.linuxfoundation.org / pipermail/bitcoin-dev/2019-February/016697.html
Third Party Advisory