01 Record

CVE-2023-47213

First Corporation's DVRs use a hard-coded password, which may allow a remote unauthenticated attacker to rewrite or obtain the configuration information of the affected device. Note that updates are

CriticalPUBLISHEDCNA: jpcert

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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02 Description

First Corporation's DVRs use a hard-coded password, which may allow a remote unauthenticated attacker to rewrite or obtain the configuration information of the affected device. Note that updates are

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 65.2% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2023-11-16 07:29Z2 YR AGO

Last updated

2024-10-21 14:27Z2 YR AGO

Reserved

2023-11-15

Assigning CNA

jpcert

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-798Use of Hard-coded CredentialsBase

Data version

5.1

Document digest

40766c88a6263fba9808886e357f64f8875c902275747cf9268c9847ec42cb3d

05 Affected products

VendorProductVersionsPlatforms

First Co., Ltd.CFR-904E, CFR-908E, CFR-916Efirmware all versions—

First Co., Ltd.CFR-4EHD, CFR-8EHD, CFR-16EHDfirmware all versions—

First Co., Ltd.CFR-4EHA, CFR-8EHA, CFR-16EHAfirmware all versions—

First Co., Ltd.CFR-4EAAM, CFR-4EABCfirmware all versions—

First Co., Ltd.CFR-4EAA, CFR-8EAA, CFR-16EAAfirmware all versions—

First Co., Ltd.CFR-4EAB, CFR-8EAB, CFR-16EABfirmware all versions—

First Co., Ltd.CFR-1004EA, CFR-1008EA, CFR-1016EAfirmware all versions—

First Co., Ltd.MD-404HD, MD-808HDfirmware all versions—

First Co., Ltd.MD-404HA, MD-808HAfirmware all versions—

First Co., Ltd.MD-404AA, MD-808AAfirmware all versions—

First Co., Ltd.MD-404AB, MD-808ABfirmware all versions—

c-firstmd-808hd_firmware0 to < *—

06 References

www.c-first.co.jphttps://www.c-first.co.jp/information/ddososhirase/
www.c-first.co.jphttps://www.c-first.co.jp/wp/wp-content/uploads/2023/11/tuushin.pdf
jvn.jphttps://jvn.jp/en/vu/JVNVU99077347/