CVE-2020-26265

MEDIUM EPSS 55.5%
Published Dec 11, 20205y ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Dec 11, 2020 5y ago
Last Modified Jun 17, 2026 2w ago

Description

Go Ethereum, or "Geth", is the official Golang implementation of the Ethereum protocol. In Geth from version 1.9.4 and before version 1.9.20 a consensus-vulnerability could cause a chain split, where vulnerable versions refuse to accept the canonical chain. The fix was included in the Paragade release version 1.9.20. No individual workaround patches have been made -- all users are recommended to upgrade to a newer version.

CVSS Details

Base Score
5.3
Exploitability
1.6
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
55.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-682

Affected Products 1

VendorProductVersionRange
ethereumgo_ethereum*≥1.9.4  –  <1.9.20

References 2

  • github.com https://github.com/ethereum/go-ethereum/releases/tag/v1.9.20
    Third Party Advisory
  • github.com https://github.com/ethereum/go-ethereum/security/advisories/GHSA-xw37-57qp-9mm4
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.