CVE-2023-47674
CWE-306Published: November 16, 2023· Updated: Jun 17, 2026
Official Description
Missing authentication for critical function vulnerability in First Corporation's DVRs allows a remote unauthenticated attacker to rewrite or obtain the configuration information of the affected device. Note that updates are provided only for Late model of CFR-4EABC, CFR-4EAB, CFR-8EAB, CFR-16EAB, MD-404AB, and MD-808AB. As for the other products, apply the workaround.
Risk Analysis
First Corporation DVRs lack authentication for critical functions, allowing remote attackers to modify or retrieve device configurations. This critical vulnerability exposes the device to unauthorized administrative control.
No public exploit is known, and it is not in the CISA KEV.
Apply the latest firmware updates for supported models or implement network isolation to prevent unauthorized access.
Technical Analysis
CVE-2023-47674 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-306)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-47674 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts