CVE-2022-43543 json
KDDI +Message App, NTT DOCOMO +Message App, and SoftBank +Message App contain a vulnerability caused by improper handling of Unicode contro…
published 2022-12-21 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-46541
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 44%
- public exploits
- 0
- none known
Summary
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
Patch / fix
- docomo +_message 3.9.4, 54.49.0500
- kddi +_message 3.9.2, 3.9.4
- softbank +_message 3.9.4, 12.9.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.52% chance of exploitation in the next 30 days, higher than 44% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
Affected products
- 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
Classification
- Weakness
-
- CWE-116 Improper Encoding or Escaping of Output
References
-
au.com
/mobile/service/plus-message/information/
vendor-advisory
-
docomo.ne.jp
/service/plus_message/
vendor-advisory
-
softbank.jp
/mobile/service/plus-message/
vendor-advisory
-
jvn.jp
/en/jp/JVN43561812/index.html
third-party-advisory
Sources
- CVE List CVE-2022-43543
- NVD CVE-2022-43543
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.