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CVE-2022-43543

5.4 · MEDIUM

KDDI +Message App, NTT DOCOMO +Message App, and SoftBank +Message App contain a vulnerability caused by improper handling of Unicode control characters.

Published Dec 21, 2022CWE-116EPSS 0.50%

Overview

CVE-2022-43543 is a medium-severity vulnerability. It was published on December 21, 2022 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

KDDI +Message App, NTT DOCOMO +Message App, and SoftBank +Message App contain a vulnerability caused by improper handling of Unicode control characters. +Message App displays text unprocessed, even when control characters are contained, and the text is shown based on Unicode control character's specifications. Therefore, a crafted text may display misleading web links. As a result, a spoofed URL may be displayed and phishing attacks may be conducted. Affected products and versions are as follows: KDDI +Message App for Android prior to version 3.9.2 and +Message App for iOS prior to version 3.9.4, NTT DOCOMO +Message App for Android prior to version 54.49.0500 and +Message App for iOS prior to version 3.9.4, and SoftBank +Message App for Android prior to version 12.9.5 and +Message App for iOS prior to version 3.9.4

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refjvn.jp/en/jp/JVN43561812/index.htmlRefwww.au.com/mobile/service/plus-message/information/Refwww.docomo.ne.jp/service/plus_message/Refwww.softbank.jp/mobile/service/plus-message/Refjvn.jp/en/jp/JVN43561812/index.htmlRefwww.au.com/mobile/service/plus-message/information/Refwww.docomo.ne.jp/service/plus_message/Refwww.softbank.jp/mobile/service/plus-message/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-43543?

CVE-2022-43543 is a medium-severity vulnerability. It was published on December 21, 2022 and has a CVSS 3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2022-43543?

This vulnerability has a CVSS 3.1 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-43543?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-43543?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-43543 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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