Is CVE-2026-54318 in the CISA KEV catalog?

No. CVE-2026-54318 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-54318?

CVE-2026-54318 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2026-54318?

CVE-2026-54318 has an EPSS score of 0.11% (2th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-54318?

Upgrade home assistant companion to 2026.5.3 or later.

CVE & CISA-KEV Catalog

CVE-2026-54318

HIGH

7.1

CVSS v3

NVD

Description

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2026.5.3, the LocationSensorManager BroadcastReceiver is exported with no permission. Any installed app, with zero runtime permissions, can broadcast a forged Google Play Services LocationResult directly to it; the receiver trusts the extra and forwards it to the user's Home Assistant server as the device's real location. This bypasses Android's developer-mode "Mock Location" gate and allows a local malicious app to drive zone-based automations (unlock door / disarm alarm / open garage) by faking the user's GPS position. This vulnerability is fixed in 2026.5.3.

CWE-926

How to fix

Remediation Available

home assistant companionNVD

Affected:< 2026.5.3Fixed in:2026.5.3CVE-2026-54318derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Exploit Intelligence

0.11%probability of exploitation in 30 days

2ndpercentile

Low risk: more likely to be exploited than 2% of all known CVEs.

References

Patch1

github.com

Exploit1

github.com

Embed a live status badge for CVE-2026-54318

Markdown

[![CVE-2026-54318](https://tridentstack.com/cve/badge/CVE-2026-54318.svg)](https://tridentstack.com/cve/CVE-2026-54318)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-54318"><img src="https://tridentstack.com/cve/badge/CVE-2026-54318.svg" alt="CVE-2026-54318"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-26.