CVE-2019-15947

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-05 · updated 2026-06-17
Weakness: CWE-312

Description

In Bitcoin Core 0.18.0, bitcoin-qt stores wallet.dat data unencrypted in memory. Upon a crash, it may dump a core file. If a user were to mishandle a core file, an attacker can reconstruct the user's wallet.dat file, including their private keys, via a grep "6231 0500" command.

Affected products

Bitcoin Core: 0.18.0

References

https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2019-15947
https://gist.github.com/oxagast/50a121b2df32186e0c48411859d5861b
https://github.com/bitcoin/bitcoin/issues/16824
https://security.gentoo.org/glsa/202009-18
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures#CVE-2019-15947
https://gist.github.com/oxagast/50a121b2df32186e0c48411859d5861b
https://github.com/bitcoin/bitcoin/issues/16824
https://security.gentoo.org/glsa/202009-18

Get alerted when CVE-2019-15947 or the next vulnerability affects your stack