CVE-2022-36847

Unspecified malicious actions via unsynchronized MTP signaling

Published Sep 9, 2022 · Updated Aug 3, 2024

Use-after-free in the MTP driver in Samsung Mobile Devices on Android 10 and 11 allows local users to perform malicious actions. The mtp_send_signal function lacks proper mutual-exclusion checking, allowing signal handling to race with object release and access freed memory. Local access is required; Samsung has not published the triggering input or a more specific consequence.

CVSS severity4.9
Medium
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the MTP driver in Samsung Mobile Devices on Android 10 and 11 allows local users to perform malicious actions. The mtp_send_signal function lacks proper mutual-exclusion checking, allowing signal handling to race with object release and access freed memory. Local access is required; Samsung has not published the triggering input or a more specific consequence.

The record

CVE
CVE-2022-36847
Published
Sep 9, 2022
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-416
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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=Q(10), R(11) <SMR Sep-2022 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Q(10), R(11) <SMR Sep-2022 Release 1

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.9Samsung MobileCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

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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