What is CVE-2018-19183?

CVE-2018-19183 is a high-severity vulnerability in Ethereumjs-Vm Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-11-12.

How severe is CVE-2018-19183?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Ethereumjs-Vm Project

CVE-2018-19183

ethereumjs-vm 2.4.0 allows attackers to cause a denial of service (vm.runCode failure and REVERT) via a "code: Buffer.from(my_code, 'hex')" attribute. NOTE: the vendor disputes this because REVERT is a normal bytecode that can be triggered from high-level source code, leading to a normal programmatic execution result.

Vulnerability class: Buffer Overflow

Published 2018-11-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.031 (87.3th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000

Affected products

Ethereumjs-Vm Project — versions 2.4.0

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com/ethereumjs/ethereumjs-vm/issues/386 (Exploit, Third Party Advisory)
github.com/ethereumjs/ethereumjs-monorepo/issues/395
github.com/ethereumjs/ethereumjs-monorepo/issues/386

Frequently asked questions

What is CVE-2018-19183?: CVE-2018-19183 is a high-severity vulnerability in Ethereumjs-Vm Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-11-12.
How severe is CVE-2018-19183?: High severity. CVSS v3 base score is 7.5 out of 10.