Improper certificate validation in Softbank, NTT docomo, KDDI Multiple +Message Apps
Priority LOW 28CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.
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.
Why it matters now
EPSS 0.00667 52nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 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) | 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 | — | No fix listed | CNA |
- 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) VendorSoftbank, NTT docomo, KDDI Affected 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 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:* | before 1.0.6 | Vulnerable | KDDI CORPORATION |
| cpe:2.3:a:ntttocomo:\+_message:*:*:*:*:*:*:*:* | before 42.40.2800 | Vulnerable | Ntttocomo |
| cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:* | before 10.1.7 | Vulnerable | SoftBank Corp. |
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | not specified by NVD | Running on | |
| cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:* | before 1.1.23 | Vulnerable | KDDI CORPORATION |
| cpe:2.3:a:ntt_tocomo:\+_message:*:*:*:*:*:*:*:* | before 1.1.23 | Vulnerable | Ntt Tocomo |
| cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:* | before 1.1.23 | Vulnerable | SoftBank Corp. |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | all versions | Running on | Apple |
- cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:* Versions before 1.0.6 Vulnerable ·KDDI CORPORATION
- cpe:2.3:a:ntttocomo:\+_message:*:*:*:*:*:*:*:* Versions before 42.40.2800 Vulnerable ·Ntttocomo
- cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:* Versions before 10.1.7 Vulnerable ·SoftBank Corp.
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
- cpe:2.3:a:kddi:\+_message:*:*:*:*:*:*:*:* Versions before 1.1.23 Vulnerable ·KDDI CORPORATION
- cpe:2.3:a:ntt_tocomo:\+_message:*:*:*:*:*:*:*:* Versions before 1.1.23 Vulnerable ·Ntt Tocomo
- cpe:2.3:a:softbank:\+_message:*:*:*:*:*:*:*:* Versions before 1.1.23 Vulnerable ·SoftBank Corp.
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions all versions Running on ·Apple
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-0691
- 2026-10-03 Alias added: GHSA-wh57-pfpg-3fff
References
Sources
- CVE-2018-0691 · CVE Program
- CVE-2018-0691 · NVD
- FIRST EPSS
- GHSA-wh57-pfpg-3fff · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences