---
title: "CVE-2024-28213: nGrinder vulnerable to unsafe Java objects deserialization"
url: https://erroneo.us/security/cve/CVE-2024-28213/
description: "CVE-2024-28213 (org.ngrinder:ngrinder-core (Maven)): nGrinder before 3.5.9 allows to accept serialized Java objects from unauthenticated users, which could…"
type: vulnerability-record
section: "Security Digest"
date_published: 2024-03-07
date_modified: 2024-08-22
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-28213"
kev: false
cvss: 9.3
epss: 0.01189
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-28213: nGrinder vulnerable to unsafe Java objects deserialization

**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 1.2% , percentile 68: FIRST’s model estimates a 1.2% chance of exploitation activity in the next 30 days, higher than 68% of all scored CVEs (moderate). 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 org.ngrinder:ngrinder-core (Maven) < 3.5.9, fixed in 3.5.9 . Check your lockfile, including transitive dependencies.

## What it is

nGrinder before 3.5.9 allows to accept serialized Java objects from unauthenticated users, which could allow remote attacker to execute arbitrary code via unsafe Java objects deserialization.

## Affected packages

- Maven `org.ngrinder:ngrinder-core` < 3.5.9 → fixed: 3.5.9

## Affected products (CVE record)

- NAVER nGrinder: 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 4.0: 9.3 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 1.19% probability of exploitation activity in the next 30 days; percentile 68.

## Sources

- [GitHub Advisory GHSA-j7jm-8gf5-frcm](https://github.com/advisories/GHSA-j7jm-8gf5-frcm)
- [CVE.org record CVE-2024-28213](https://www.cve.org/CVERecord?id=CVE-2024-28213)
- [NVD entry CVE-2024-28213](https://nvd.nist.gov/vuln/detail/CVE-2024-28213)
- [NAVER Security Advisory](https://cve.naver.com/detail/cve-2024-28213.html)
- [github.com](https://github.com/naver/ngrinder/commit/85efa4a075354e077a700262ef78e2e9119881bf)

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Source page: https://erroneo.us/security/cve/CVE-2024-28213/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt