Security readout for executives and security teams
Plain-English summary
CVE-2023-49897 lets a logged-in attacker run operating-system commands on affected FXC AE1021PE and AE1021 devices. For business leaders, this means a compromised or abused account could turn a network device into a foothold with full confidentiality, integrity, and availability impact.
Executive priority
Treat this as urgent for exposed or internet-adjacent FXC devices because CISA lists it as known exploited and successful abuse can fully compromise the device. Prioritize inventory, access restriction, and vendor-directed remediation.
Technical view
The issue is CWE-78 OS command injection in FXC AE1021PE and AE1021 firmware 2.0.9 and earlier. The CVSS 3.1 score is 8.8, with network access, low complexity, low privileges, no user interaction, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to organizations running FXC AE1021PE or AE1021 devices on firmware 2.0.9 or earlier. Risk is higher where management interfaces are reachable from untrusted networks or weak credentials are present.
Exploitation context
CISA KEV marks this CVE as known exploited. The provided references also include Akamai research describing Mirai-related exploitation context. The bundle does not prove exploitation against every deployment or identify specific credential-acquisition methods.
Researcher notes
The available bundle identifies affected products, versions, CWE, CVSS, and exploitation status, but does not include detailed root-cause code paths or a named fixed version. Avoid assuming unauthenticated impact; the description requires an attacker who can log in.
Mitigation direction
- Inventory FXC AE1021PE and AE1021 devices and record firmware versions.
- Follow FXC, JVN, and CISA guidance for vendor-approved updates or mitigations.
- Restrict management access to trusted administration networks only.
- Review local accounts and remove weak, shared, or unnecessary credentials.
- Monitor affected devices for unexpected configuration or process changes.
Validation and detection
- Confirm whether any AE1021PE or AE1021 device runs firmware 2.0.9 or earlier.
- Check whether device administration is exposed beyond trusted networks.
- Review authentication logs for unusual successful logins.
- Check security tooling for alerts tied to CVE-2023-49897 or Mirai activity.
- Verify remediation status against vendor and CISA advisories.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-49897 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.fxc.jp/news/20231206CVE reference
- https://jvn.jp/en/vu/JVNVU92152057/CVE reference
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-355-01CVE reference
- https://www.akamai.com/blog/security-research/zero-day-vulnerability-spreading-mirai-patchedCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49897CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.