CVE-2022-43543

What it is

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

At a glance

Exploitability

Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2022-12-21 09:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 05:06 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 5.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2022-12-21 09:15 UTC

Last modified

2026-06-17 05:06 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-116

Record status

Modified

Affected

• Docomo \+ Message < 3.9.4
• Docomo \+ Message < 54.49.0500
• Kddi \+ Message < 3.9.2
• Kddi \+ Message < 3.9.4
• Softbank \+ Message < 3.9.4
• Softbank \+ Message < 12.9.5

Attack profile CVSS 3.1 · 5.4

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2022-43543.md and follow it. Check whether this project is affected by CVE-2022-43543. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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