What’s Vulnerable › Vulnerabilities

CVE-2018-17145

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-09-10 · updated 2026-06-17
• Weakness: CWE-400

Description

Bitcoin Core 0.16.x before 0.16.2 and Bitcoin Knots 0.16.x before 0.16.2 allow remote denial of service via a flood of multiple transaction inv messages with random hashes, aka INVDoS. NOTE: this can also affect other cryptocurrencies, e.g., if they were forked from Bitcoin Core after 2017-11-15.

Affected products

• Bcoin: before 1.0.2 — fixed in 1.0.2
• Bitcoin Core: from 0.16.0 before 0.16.2 — fixed in 0.16.2
• Bitcoinknots Bitcoin Knots: from 0.16.0 before 0.16.2 — fixed in 0.16.2
• btcsuite btcd: 0.3.0-alpha, 0.3.1-alpha, 0.3.2-alpha, 0.3.3-alpha, 0.4.0-alpha, 0.5.0-alpha (+12)
• Decred Dcrd: before 1.5.2 — fixed in 1.5.2
• Litecoin: from 0.16.0 before 0.16.2 — fixed in 0.16.2
• Namecoin Core: from 0.16.0 before 0.16.2 — fixed in 0.16.2

How to fix

Upgrade to a fixed version: Bcoin 1.0.2; Bitcoin Core 0.16.2; Bitcoinknots Bitcoin Knots 0.16.2; Decred Dcrd 1.5.2; Litecoin 0.16.2; Namecoin Core 0.16.2. Check the vendor advisory for mitigations.

References

• https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-17145
• https://github.com/bitcoin/bitcoin/blob/v0.16.2/doc/release-notes.md
• https://invdos.net
• https://invdos.net/paper/CVE-2018-17145.pdf
• https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2018-17145
• https://github.com/bitcoin/bitcoin/blob/v0.16.2/doc/release-notes.md
• https://invdos.net
• https://invdos.net/paper/CVE-2018-17145.pdf

Get alerted when CVE-2018-17145 or the next vulnerability affects your stack