CVE-2025-26438

Remote privilege escalation via false Bluetooth OOB claim

Published Sep 4, 2025 · Updated Feb 26, 2026

Improper authentication in Android 13 through 15 allows remote attackers to escalate privileges through Bluetooth SMP pairing. The smp_process_secure_connection_oob_data function substitutes a zero OOB randomizer when no local OOB data exists instead of rejecting a peer that falsely claims OOB data. A malicious Bluetooth peer within radio range needs no user interaction to complete pairing and cross the device's trust boundary.

CVSS severity8.8
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Android 13 through 15 allows remote attackers to escalate privileges through Bluetooth SMP pairing. The smp_process_secure_connection_oob_data function substitutes a zero OOB randomizer when no local OOB data exists instead of rejecting a peer that falsely claims OOB data. A malicious Bluetooth peer within radio range needs no user interaction to complete pairing and cross the device's trust boundary.

The record

CVE
CVE-2025-26438
Published
Sep 4, 2025
Updated
Feb 26, 2026
Vendor
Google Cloud
Product
Android
Classifications
CWE-287
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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=13
  2. Affected versionversion=14
  3. Affected versionversion=15

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=13; version=14; version=15

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

CWE-287Improper Authentication

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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