VulnerabilityAnalyzed

CVE-2026-26314

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol.

HIGH 8.7EPSS 0.58%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

go-ethereum (geth) is a golang execution layer implementation of the Ethereum protocol. Prior to version 1.16.9, a vulnerable node can be forced to shutdown/crash using a specially crafted message. The problem is resolved in the v1.16.9 and v1.17.0 releases of Geth.

CVSS 4.0: 8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.58% probability · 46th percentile
CISA KEV: Not listed
Weakness: CWE-20
Affected: ethereum/go ethereum
Source: security-advisories@github.com

References

https://github.com/ethereum/go-ethereum/commit/895a8597cb16c02203e38707ed2d1da5c500fe60Patch
https://github.com/ethereum/go-ethereum/releases/tag/v1.16.9Release Notes
https://github.com/ethereum/go-ethereum/security/advisories/GHSA-2gjw-fg97-vg3rVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.