Is CVE-2022-43543 in the CISA KEV catalog?

No. CVE-2022-43543 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-43543?

CVE-2022-43543 has a CVSS v3 base score of 5.4 (MEDIUM).

What is the EPSS score for CVE-2022-43543?

CVE-2022-43543 has an EPSS score of 0.49% (39th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-43543?

Upgrade \+ message to 3.9.4 or later.

CVE & CISA-KEV Catalog

CVE-2022-43543

MEDIUM

5.4

CVSS v3

NVD

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

CWE-116

How to fix

Remediation Available

\+ messageNVD

Affected:< 3.9.4Fixed in:3.9.4CVE-2022-43543derived from NVD

Affected:< 54.49.0500Fixed in:54.49.0500CVE-2022-43543derived from NVD

Affected:< 3.9.2Fixed in:3.9.2CVE-2022-43543derived from NVD

Affected:< 3.9.4Fixed in:3.9.4CVE-2022-43543derived from NVD

Affected:< 12.9.5Fixed in:12.9.5CVE-2022-43543derived from NVD

Affected:< 3.9.4Fixed in:3.9.4CVE-2022-43543derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.49%probability of exploitation in 30 days

39thpercentile

Low risk: more likely to be exploited than 39% of all known CVEs.

References

Vendor Advisory3

Third-Party Advisory1

jvn.jp

Related Vulnerabilities

Other CWE-116 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-38475	Critical	9.1	100%	KEV	Fix
CVE-2022-36446	Critical	9.8	96%	-	Fix
CVE-2021-31806	Medium	6.5	96%	-	Fix
CVE-2022-30781	High	7.5	88%	-	Fix
CVE-2022-36099	Critical	9.9	76%	-	Fix
CVE-2022-36100	Critical	9.9	74%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-16.