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CVE detail

CVE-2023-39910

The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from "bx seed" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor's position is that there was sufficient documentation advising against "bx seed" but others disagree. NOTE: this was exploited in the wild in June and July 2023.

CVSS 7.5 · HighBuzz score 16.51 public exploit repository references

Buzz score

Why this CVE is surfacing

Buzz score total 16.5

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 6.9 · diversity 5.0 · KEV 0.0 · OTX 0.0 · PoC 4.6
Mention score
6.9
1 evidence mentions in the snapshot
Diversity score
5.0
1 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
4.6
1 repos · best confidence 0.80
Best PoC traction
1
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
1
within the 30d window
Peak daily
1
highest bucket

Evidence

Source links by recency

Newest mentions first
1 source links · newest first
  • som," the first weak phrase its generator produces, the same way Milk Sad was named after "milk sad" in 2023. That bug (CVE-2023-39910), in the Libbitcoin Explorer command-line tool, let thieves drain millions in one sweep that July. A close cousin (CVE-2023-31290) hit the Trust Wallet browser extension the same year, crackable in under a day. The same

    newsthehackernews.comJul 10, 2026, 9:00 AM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

1 repository references · best confidence 0.80 · max 1 stars

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