3.4

CVE-2015-20112: ethereum rlpx Missing Cryptographic Step

CVSS: 3.4v3.1LowDeferred
Published 29-06-2025Last modified 30-06-2025
Open JSON

Vulnerability summary

CVE-2015-20112 is a low (CVSS 3.4) Missing Cryptographic Step vulnerability in ethereum rlpx. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Overall risk
14/100
0100
Low · default modelHow is this calculated?
CVSS score
3.4/10
010
Low · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 29-06-2025
    PublishedVulnerability first disclosed.
  2. 30-06-2025
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.01 pp

From 0.15% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ethereum1 product

1 vendor · 1 product

References

5 links