VulnerabilityModified

CVE-2018-12018

HIGH 7.5EPSS 4.25%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The GetBlockHeadersMsg handler in the LES protocol implementation in Go Ethereum (aka geth) before 1.8.11 may lead to an access violation because of an integer signedness error for the array index, which allows attackers to launch a Denial of Service attack by sending a packet with a -1 query.Skip value. The vulnerable remote node would be crashed by such an attack immediately, aka the EPoD (Ethereum Packet of Death) issue.

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 4.25% probability · 91th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-129
Affected: ethereum/go ethereum
Source: cve@mitre.org

EPSS trend

EPSS 4.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4Patch, Third Party Advisory
https://github.com/ethereum/go-ethereum/pull/16891Issue Tracking, Patch, Third Party Advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.8.11Third Party Advisory
https://peckshield.com/2018/06/27/EPoD/Exploit, Third Party Advisory
https://github.com/ethereum/go-ethereum/commit/a5237a27eaf81946a3edb4fafe13ed6359d119e4Patch, Third Party Advisory
https://github.com/ethereum/go-ethereum/pull/16891Issue Tracking, Patch, Third Party Advisory
https://github.com/ethereum/go-ethereum/releases/tag/v1.8.11Third Party Advisory
https://peckshield.com/2018/06/27/EPoD/Exploit, Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.