6.5

CVE-2020-26264: ethereum go_ethereum Uncontrolled Resource Consumption

CVSS: 6.5v3.1MediumModified
AliasesGHSA-r33q-22hv-j29qGO-2021-0063
Published 11-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-26264 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in ethereum go_ethereum. EPSS estimates a 1.89% chance of exploitation in the next 30 days, higher than 79.2% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.89%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth before version 1.9.25 a denial-of-service vulnerability can make a LES server crash via malicious GetProofsV2 request from a connected LES client. This vulnerability only concerns users explicitly enabling les server; disabling les prevents the exploit. The vulnerability was patched in version 1.9.25.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.89%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

0.00 pp

From 1.89% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.89%

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

Ethereum2 products
Github.com/ethereum1 product
  • go-ethereum< 1.9.25

2 vendors · 3 products

References

7 links