What’s Vulnerable › Vulnerabilities

CVE-2017-18350

• Severity: medium (CVSS 5.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-12 · updated 2026-06-17
• Weakness: CWE-120

Description

bitcoind and Bitcoin-Qt prior to 0.15.1 have a stack-based buffer overflow if an attacker-controlled SOCKS proxy server is used. This results from an integer signedness error when the proxy server responds with an acknowledgement of an unexpected target domain name.

Affected products

• Bitcoin Core: before 0.15.1 — fixed in 0.15.1

How to fix

Upgrade to a fixed version: Bitcoin Core 0.15.1. Check the vendor advisory for mitigations.

References

• https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
• https://medium.com/%40lukedashjr/cve-2017-18350-disclosure-fe6d695f45d5
• https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
• https://medium.com/%40lukedashjr/cve-2017-18350-disclosure-fe6d695f45d5

Get alerted when CVE-2017-18350 or the next vulnerability affects your stack