---
title: "CVE-2023-49897: FXC AE1021, AE1021PE OS Command Injection Vulnerability"
url: https://erroneo.us/security/cve/CVE-2023-49897/
description: "CVE-2023-49897 (FXC AE1021, AE1021PE): Exploited in the wild (CISA KEV). An OS command injection vulnerability exists in AE1021PE firmware version 2.0.9 and…"
type: vulnerability-record
section: "Security Digest"
date_published: 2023-12-06
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2023-49897"
kev: true
cvss: 8.8
epss: 0.50447
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2023-49897: FXC AE1021, AE1021PE OS Command Injection Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run FXC AE1021, AE1021PE. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2023-12-21, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-01-11 ; treat that as the outer limit, not the target.
- EPSS 50.4% , percentile 99: FIRST’s model estimates a 50.4% chance of exploitation activity in the next 30 days, higher than 99% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.

## What it is

An OS command injection vulnerability exists in AE1021PE firmware version 2.0.9 and earlier and AE1021 firmware version 2.0.9 and earlier. If this vulnerability is exploited, an arbitrary OS command may be executed by an attacker who can log in to the product.

## Affected products (CVE record)

- FXC Inc. AE1021PE: 2.0.9 and earlier
- FXC Inc. AE1021: 2.0.9 and earlier

## Severity

- CISA-ADP CVSS 3.1: 8.8 `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`

## Exploitation

- CISA KEV: added 2023-12-21; federal due date 2024-01-11. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable no , technical impact total .
- FIRST EPSS (model of 2026-10-21): 50.45% probability of exploitation activity in the next 30 days; percentile 99.

## Sources

- [Listed in CISA KEV notes (fxc.jp)](https://www.fxc.jp/news/20231206)
- [CVE.org record CVE-2023-49897](https://www.cve.org/CVERecord?id=CVE-2023-49897)
- [NVD entry CVE-2023-49897](https://nvd.nist.gov/vuln/detail/CVE-2023-49897)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49897)
- [jvn.jp](https://jvn.jp/en/vu/JVNVU92152057/)
- [cisa.gov](https://www.cisa.gov/news-events/ics-advisories/icsa-23-355-01)
- [akamai.com](https://www.akamai.com/blog/security-research/zero-day-vulnerability-spreading-mirai-patched)

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Source page: https://erroneo.us/security/cve/CVE-2023-49897/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt