CVE-2022-27834

Local information disclosure via DSP driver race

Published Apr 11, 2022 · Updated Aug 3, 2024

Use-after-free in the DSP driver on affected Samsung Mobile Devices allows local users to disclose limited information through a race. The dsp_context_unload_graph function lacks proper mutual exclusion, allowing concurrent graph teardown to leave memory available after it is freed. Exploitation requires local access and a high-complexity race; the published assessment reports limited disclosure with no data modification or service interruption.

CVSS severity2.9
Low
EPSS probability0.10%
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 DSP driver on affected Samsung Mobile Devices allows local users to disclose limited information through a race. The dsp_context_unload_graph function lacks proper mutual exclusion, allowing concurrent graph teardown to leave memory available after it is freed. Exploitation requires local access and a high-complexity race; the published assessment reports limited disclosure with no data modification or service interruption.

The record

CVE
CVE-2022-27834
Published
Apr 11, 2022
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-416, CWE-367
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 11, 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), S(12) devices with Exynos 2100, 9830, 980 chipsets <SMR Apr-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), S(12) devices with Exynos 2100, 9830, 980 chipsets <SMR Apr-2022 Release 1

Published CVSS scores

2.9Samsung MobileCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
4.4NIST NVDAV:L/AC:M/Au:N/C:P/I:P/A:P
7.0NIST NVDCVSS:3.1/AV:L/AC:H/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.

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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition

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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