CVE-2018-0691 json
Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7, Softbank +Message App for iOS prior to version 1.1.23, N…
published 2018-11-15 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1501
- cvss
- 5.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7, Softbank +Message App for iOS prior to version 1.1.23, NTT DOCOMO +Message App for Android prior to version 42.40.2800, NTT DOCOMO +Message App for iOS prior to version 1.1.23, KDDI +Message App for Android prior to version 1.0.6, and KDDI +Message App for iOS prior to version 1.1.23) do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
Patch / fix
- kddi +_message 1.0.6, 1.1.23
- ntttocomo +_message 42.40.2800
- softbank +_message 1.1.23, 10.1.7
- ntt_tocomo +_message 1.1.23
Exploit prediction
0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Affected products
- Softbank, NTT docomo, KDDI Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7, Softbank +Message App for iOS prior to version 1.1.23, NTT DOCOMO +Message App for Android prior to version 42.40.2800, NTT DOCOMO +Message App for iOS prior to version 1.1.23, KDDI +Message App for Android prior to version 1.0.6, and KDDI +Message App for iOS prior to version 1.1.23)
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
au.com
/information/notice_mobile/service/2018-002/
patch, vendor-advisory
-
softbank.jp
/mobile/info/personal/news/service/20180927a/
patch, vendor-advisory
-
nttdocomo.co.jp
/info/notice/page/180927_00.html
patch, vendor-advisory
-
jvn.jp
/en/jp/JVN37288228/index.html
third-party-advisory
Sources
- CVE List CVE-2018-0691
- NVD CVE-2018-0691
Fencer Intel 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.