Home/CVE/FXC AE1021, AE1021PE OS Command Injection Vulnerability
CVE

CVE-2023-49897

FXC AE1021, AE1021PE OS Command Injection Vulnerability

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.

HIGH · CVSS 8.8 ⚠ CISA KEV EPSS 0.24413
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  • Listed on CISA KEV (known exploited in the wild)
  • SSVC exploitation status: active
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 4% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬢

Required Remediation

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

⬡

Weakness Classification

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
▤

Affected Products & Versions

2
fxc ae1021 firmware< 2.0.10
fxc ae1021pe firmware< 2.0.10
⚠

Public Exploits & PoCs

1
pocwww.akamai.com · zero-day-vulnerability-spreading-mirai-patchedwww.akamai.com
◈

Detection Rules (IDS/IPS)

1
et-openET WEB_SPECIFIC_APPS FXC AE1021 Series Router ntp.general.hostname Authenticated Command Injection Attempt (CVE-2023-49897)attempted-admin
Open rulesets (ET Open, Snort Community, abuse.ch) link to source. Commercial rulesets are reference-only.
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Dec 2023 · 07:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
active
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

2
cisaKEV-CVE-2023-49897
cisa-csafcisa-csaf-csaf_files-OT-white-2023-icsa-23-355-01
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jvn.jp/en/vu/JVNVU92152057/Third Party Advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-355-01Third Party AdvisoryUS Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49897US Government Resource
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