CVE-2026-28627

Remote information disclosure via Bluetooth encryption downgrade

Published Sep 8, 2026 · Updated Sep 10, 2026

Information disclosure in Google Android 16-qpr2 and 17 allows remote attackers to expose data through a Bluetooth downgrade attack. The btm_sec_encrypt_change function in btm_sec.cc contains logic that fails to reject a downgraded Bluetooth encryption algorithm. Exploitation requires neither privileges nor user interaction, but Google has not identified the exposed data or the exact wireless preconditions.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Google Android 16-qpr2 and 17 allows remote attackers to expose data through a Bluetooth downgrade attack. The btm_sec_encrypt_change function in btm_sec.cc contains logic that fails to reject a downgraded Bluetooth encryption algorithm. Exploitation requires neither privileges nor user interaction, but Google has not identified the exposed data or the exact wireless preconditions.

The record

CVE
CVE-2026-28627
Published
Sep 8, 2026
Updated
Sep 10, 2026
Vendor
Google Cloud
Product
Android
Classifications
Unavailable
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=16-qpr2
  2. Affected versionversion=17

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=16-qpr2; version=17

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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