---
title: "CVE-2023-51837: Ylianst MeshCentral Missing SSL Certificate Validation"
url: https://erroneo.us/security/cve/CVE-2023-51837/
description: "CVE-2023-51837 (meshcentral (npm)): Ylianst MeshCentral 1.1.16 is vulnerable to Missing SSL Certificate Validation."
type: vulnerability-record
section: "Security Digest"
date_published: 2024-01-30
date_modified: 2025-05-29
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-51837"
kev: false
cvss: 9.8
epss: 0.00467
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-51837: Ylianst MeshCentral Missing SSL Certificate Validation

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 39: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 39% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes meshcentral (npm) <= 1.1.16, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

Ylianst MeshCentral 1.1.16 is vulnerable to Missing SSL Certificate Validation.

## Affected packages

- npm `meshcentral` <= 1.1.16 → fixed: none listed

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
- GitHub CVSS 3.1: 9.8 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.47% probability of exploitation activity in the next 30 days; percentile 39.

## Sources

- [GitHub Advisory GHSA-8xw6-9h78-c89j](https://github.com/advisories/GHSA-8xw6-9h78-c89j)
- [CVE.org record CVE-2023-51837](https://www.cve.org/CVERecord?id=CVE-2023-51837)
- [NVD entry CVE-2023-51837](https://nvd.nist.gov/vuln/detail/CVE-2023-51837)
- [github.com](https://github.com/tianjk99/Cryptographic-Misuses/blob/main/Bug_MeshCentral.md)
- [github.com](https://github.com/Ylianst/MeshCentral/blob/master/mpsserver.js)
- [github.com](https://github.com/tianjk99/Cryptographic-Misuses/blob/main/CVE-2023-51837.md)

---
Source page: https://erroneo.us/security/cve/CVE-2023-51837/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt