CVE-2023-49897 FXC AE1021, AE1021PE OS Command Injection Vulnerability
FXC AE1021 and AE1021PE contain an OS command injection vulnerability that allows authenticated users to execute commands via a network.
From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.
Should You Worry?
- CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 21 Dec 2023.
- Rated High severity (CVSS 8.8, scored by CISA).
- It has been in the catalogue for 1,051 days. Systems still unpatched now have almost certainly been scanned for it.
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 Versions
| Product | Versions |
|---|---|
| FXC Inc. AE1021PE | 2.0.9 and earlier |
| FXC Inc. AE1021 | 2.0.9 and earlier |
From the public CVE record, as supplied by the vendor. Always confirm against the vendor advisory.
What To Do Now
- 1
Find it
Search your asset inventory and external attack surface for FXC AE1021, AE1021PE. Include cloud images, appliances and anything a supplier runs for you.
Attack Surface Management - 2
Fix it
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Vulnerability Management - 3
Hunt for compromise
If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.
Incident Response - 4
Prove it is fixed
Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.
Penetration Testing
Vendor Advisories
The Compliance Clock
General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.
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