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Fencer Intel
low 3.4

CVE-2015-20112 json

RLPx 5 has two CTR streams based on the same key, IV, and nonce.

published last yr. modified 4mo ago also EUVD-2015-9392

cvss
3.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

RLPx 5 has two CTR streams based on the same key, IV, and nonce. This can facilitate decryption on a private network.

Patch / fix

Is CVE-2015-20112 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.17% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

Affected products

  • Ethereum RLPx

Classification

Weakness
  • CWE-325 Missing Cryptographic Step

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.