CVE-2025-20649

Adjacent information disclosure via missing permission check

Published Mar 3, 2025 · Updated Mar 4, 2025

Information disclosure in MediaTek Bluetooth Stack SW for SDK 3.6 and earlier or OpenWRT 23.05 allows remote attackers to read data over Bluetooth. The Bluetooth stack omits a permission check before exposing information, but MediaTek has not disclosed the checked operation or data involved. Exploitation requires adjacent Bluetooth reachability, needs no prior privileges or user interaction, and is limited to information disclosure.

CVSS severity6.5
Medium
EPSS probability0.24%
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 MediaTek Bluetooth Stack SW for SDK 3.6 and earlier or OpenWRT 23.05 allows remote attackers to read data over Bluetooth. The Bluetooth stack omits a permission check before exposing information, but MediaTek has not disclosed the checked operation or data involved. Exploitation requires adjacent Bluetooth reachability, needs no prior privileges or user interaction, and is limited to information disclosure.

The record

CVE
CVE-2025-20649
Published
Mar 3, 2025
Updated
Mar 4, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-280, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-280Improper Handling of Insufficient Permissions or Privileges
T1210Exploitation of Remote Services

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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