CVE-2022-28704

Name: CVE-2022-28704
Creator: NVD / NIST
Published: 2022-06-13T05:15:11.27+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.44%

Last modified Jun 17, 2026

CVE-2022-28704 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. Improper access control vulnerability in Rakuten Casa version AP_F_V1_4_1 or AP_F_V2_0_0 allows a remote attacker to log in with the root privilege and perform an arbitrary operation if the product is in its default settings in which is set to accept SSH connections from the WAN side, and is also connected to the Internet with the authentication information unchanged from the default settings.. EPSS estimates a 2.44% chance of exploitation in the next 30 days.

Description

Improper access control vulnerability in Rakuten Casa version AP_F_V1_4_1 or AP_F_V2_0_0 allows a remote attacker to log in with the root privilege and perform an arbitrary operation if the product is in its default settings in which is set to accept SSH connections from the WAN side, and is also connected to the Internet with the authentication information unchanged from the default settings.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

2.44%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Rakuten	Casa	ap_f_v1_4_1
Rakuten	Casa	ap_f_v2_0_0

References

https://jvn.jp/en/jp/JVN46892984/index.htmlThird Party Advisory, VDB Entry
https://network.mobile.rakuten.co.jp/information/news/product/1033/Vendor Advisory
https://jvn.jp/en/jp/JVN46892984/index.htmlThird Party Advisory, VDB Entry
https://network.mobile.rakuten.co.jp/information/news/product/1033/Vendor Advisory

Timeline

Published: Jun 13, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-28704?

How severe is CVE-2022-28704?

CVE-2022-28704 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.

How do I fix CVE-2022-28704?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-28704?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST