CVE-2024-43771

Adjacent code execution via zero-length GATT payload

Published Jan 21, 2025 · Updated Mar 18, 2025

Out-of-bounds write in Android 12, 12L, 13, 14, and 15 allows physically proximate attackers to execute code through a Bluetooth GATT read request. gatts_process_read_req uses a zero result from gatt_tcb_get_payload_size after the channel closes and then writes beyond the output buffer during subsequent processing. Exploitation requires Bluetooth proximity but no authentication, execution privileges, or user interaction, and successful memory corruption grants code execution in the Bluetooth service context.

CVSS severity8.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in Android 12, 12L, 13, 14, and 15 allows physically proximate attackers to execute code through a Bluetooth GATT read request. gatts_process_read_req uses a zero result from gatt_tcb_get_payload_size after the channel closes and then writes beyond the output buffer during subsequent processing. Exploitation requires Bluetooth proximity but no authentication, execution privileges, or user interaction, and successful memory corruption grants code execution in the Bluetooth service context.

The record

CVE
CVE-2024-43771
Published
Jan 21, 2025
Updated
Mar 18, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-94
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 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?

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

  1. Affected versionversion=12
  2. Affected versionversion=12L
  3. Affected versionversion=13
  4. Affected versionversion=14
  5. Affected versionversion=15

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Google Cloud · Androidversion=12; version=12L; version=13; version=14; version=15

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/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-94Improper Control of Generation of Code ('Code Injection')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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