CVE-2018-9438 — When a device connects only over WiFi VPN, the device may not receive security u

When a device connects only over WiFi VPN, the device may not receive security updates due to some incorrect checks. This could lead to a local denial of service of security updates with no additional execution privileges needed. User interaction is needed for exploitation. Produ

01What is this vulnerability?

When a device connects only over WiFi VPN, the device may not receive security updates due to some incorrect checks. This could lead to a local denial of service of security updates with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android Versions: Android-8.1 Android ID: A-78644887.

02Affected products

Vendor	Product	Versions
Google Inc.	Android	Android-8.1

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2018-11-06T17:00:00.000Z
• Last modified: 2024-09-16T20:52:51.203Z

09References

• source.android.com — https://source.android.com/security/bulletin/2018-08-01
• www.securitytracker.com — http://www.securitytracker.com/id/1041432