CVE-2023-49897
CVE-2023-49897 is a high-severity vulnerability in Fxc Ae1021 Firmware with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-12-21). The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 51% (99th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2023-12-21)
- EU (EUVD) id: EUVD-2023-53797
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-12-21)
- Weakness: CWE-78
- Affected product: Fxc Ae1021 Firmware
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2023-49897?
- 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.
- How severe is CVE-2023-49897?
- CVE-2023-49897 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2023-49897 being actively exploited?
- Yes. CVE-2023-49897 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-12-21, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2023-49897?
- CVE-2023-49897 primarily affects Fxc Ae1021 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2023-49897?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2023-49897 have an EU (EUVD) identifier?
- Yes. CVE-2023-49897 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-53797. It is also flagged as exploited in the EUVD (since 2023-12-21).
- When was CVE-2023-49897 published?
- CVE-2023-49897 was published on 2023-12-06 and last updated on 2026-06-17.
References
- https://jvn.jp/en/vu/JVNVU92152057/
- https://www.akamai.com/blog/security-research/zero-day-vulnerability-spreading-mirai-patched
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-355-01
- https://www.fxc.jp/news/20231206
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-49897
Affected products (2)
- cpe:2.3:o:fxc:ae1021_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:fxc:ae1021pe_firmware:*:*:*:*:*:*:*:*
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