CVE-2015-6964

Name: CVE-2015-6964
Creator: NVD / NIST
Published: 2023-09-25T05:15:10.243+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.44%

Last modified Jun 17, 2026

CVE-2015-6964 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. MultiBit HD before 0.1.2 allows attackers to conduct bit-flipping attacks that insert unspendable Bitcoin addresses into the list that MultiBit uses to send fees to the developers. (Attackers cannot realistically steal these fees for themselves.) This occurs because there is no message authentication code (MAC).. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

Description

MultiBit HD before 0.1.2 allows attackers to conduct bit-flipping attacks that insert unspendable Bitcoin addresses into the list that MultiBit uses to send fees to the developers. (Attackers cannot realistically steal these fees for themselves.) This occurs because there is no message authentication code (MAC).

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.44%

35.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Multibit	Multibit Hd	< 0.1.2

References

https://web.archive.org/web/20160506095434/https://multibit.org/blog/2015/07/25/bit-flipping-attack.htmlExploit, Third Party Advisory
https://web.archive.org/web/20160506095434/https://multibit.org/blog/2015/07/25/bit-flipping-attack.htmlExploit, Third Party Advisory

Timeline

Published: Sep 25, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-6964?

How severe is CVE-2015-6964?

CVE-2015-6964 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2015-6964?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-6964?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST