CVE-2022-43543

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

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.22%
Vendor Advisory au.com Vendor Advisory ne.jp Vendor Advisory softbank.jp
Affected: KDDI CORPORATION, NTT DOCOMO, INC., and SoftBank Corp. KDDI +Message App for Android and for iOS, NTT DOCOMO +Message App for Android and for iOS, and SoftBank +Message App for Android and for iOS
Published at:
Updated at:

References

Link Tags
https://www.au.com/mobile/service/plus-message/information/ vendor advisory
https://www.docomo.ne.jp/service/plus_message/ vendor advisory
https://www.softbank.jp/mobile/service/plus-message/ vendor advisory
https://jvn.jp/en/jp/JVN43561812/index.html third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-43543?
CVE-2022-43543 has been scored as a medium severity vulnerability.
How to fix CVE-2022-43543?
To fix CVE-2022-43543, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-43543 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-43543 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-43543?
CVE-2022-43543 affects KDDI CORPORATION, NTT DOCOMO, INC., and SoftBank Corp. KDDI +Message App for Android and for iOS, NTT DOCOMO +Message App for Android and for iOS, and SoftBank +Message App for Android and for iOS.
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