What is CVE-2023-42374?

CVE-2023-42374 is a critical-severity vulnerability in Mystenlabs Sui, classified under Code Injection. CVSS score: 9.8/10. Published 2024-02-13.

How severe is CVE-2023-42374?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-42374 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Mystenlabs Sui

CVE-2023-42374

An issue in mystenlabs Sui Blockchain before v.1.6.3 allow a remote attacker to execute arbitrary code and cause a denial of service via a crafted compressed script to the Sui node component.

Vulnerability class: RCE (Remote Code Execution)

Published 2024-02-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (70.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Mystenlabs Sui

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

medium.com/@Beosin_com/memory-bomb-vulnerability-causes-sui-node-to-crash-7e8e3… (Broken Link)
github.com/MystenLabs/sui/commit/42d4ad103a21d23fecd7c0271453da41604e71e9 (Patch)
beosin.com/resources/"memory-bomb"-vulnerability-causes-sui-node-to-crash (Third Party Advisory)

Frequently asked questions

What is CVE-2023-42374?: CVE-2023-42374 is a critical-severity vulnerability in Mystenlabs Sui, classified under Code Injection. CVSS score: 9.8/10. Published 2024-02-13.
How severe is CVE-2023-42374?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-42374 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.