Security Digest · Vulnerability record · Known exploited
CVE-2023-49897: FXC AE1021, AE1021PE OS Command Injection Vulnerability
Exploited in the wild (CISA KEV). An OS command injection vulnerability exists in AE1021PE firmware version 2.0.9 and earlier and AE1021 firmware version 2.0.9 and earlier.
CISA KEV · added 2023-12-21 CVSS 8.8 High EPSS 50.4% · p99
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- 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.
CISA’s summary
FXC AE1021 and AE1021PE contain an OS command injection vulnerability that allows authenticated users to execute commands via a network.
Weakness type: CWE-78.
Product: FXC AE1021, AE1021PE · Assigned by: jpcert · Published: 2023-12-06
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| FXC Inc. | AE1021PE | 2.0.9 and earlier |
| FXC Inc. | AE1021 | 2.0.9 and earlier |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: low (any account)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- 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.
Timeline
- — CVE record published by jpcert
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
Vulnerability records
- CVE.org record CVE-2023-49897 cve.org
- NVD entry CVE-2023-49897 nvd.nist.gov
Government
Other references from the CVE record and advisory
- jvn.jp jvn.jp
- cisa.gov cisa.gov
- akamai.com akamai.com