What is CVE-2023-47674?

CVE-2023-47674 is a critical-severity vulnerability in C-First Cfr-1004ea, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2023-11-16.

How severe is CVE-2023-47674?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in C-First Cfr-1004ea

CVE-2023-47674

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.

Vulnerability class: Broken Authentication

EPSS: 0.013 (66.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory)

Frequently asked questions

What is CVE-2023-47674?: CVE-2023-47674 is a critical-severity vulnerability in C-First Cfr-1004ea, classified under Missing Authentication for Critical Function. CVSS score: 9.8/10. Published 2023-11-16.
How severe is CVE-2023-47674?: Critical severity. CVSS v3 base score is 9.8 out of 10.