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CVE-2018-9438

19
FAUCET Score

CVE-2018-9438 is a local denial-of-service vulnerability affecting Android 8.1 devices, where incorrect checks prevent security updates from being received when connected solely via WiFi VPN. With a CVSS score of 5.0 (Medium), this flaw requires user interaction and local access to exploit, potentially leading to a denial of security updates. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
8.1CPE matchmatch criteria
cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.0MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.3
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
9.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 47th percentile among its peer group of 382 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

googlepatch availablevia nvd_reference
View patch

References

source.android.com / security/bulletin/2018-08-01
PatchVendor Advisory
securitytracker.com / id/1041432
Third Party AdvisoryVDB Entry