CVE-2021-25452

Permanent device denial of service via graph path

Published Sep 9, 2021 · Updated Aug 3, 2024

Improper input validation in Samsung Mobile Devices allows local users to permanently disable affected Exynos devices via a graph file. The Vision DSP kernel driver accepts an unintended graph-file path because its loader does not properly validate the supplied path. The flaw requires low privileges and is limited to Q(10.0) and R(11.0) devices with Exynos 980, 9830, or 2100 before SMR Sep-2021 Release 1.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Samsung Mobile Devices allows local users to permanently disable affected Exynos devices via a graph file. The Vision DSP kernel driver accepts an unintended graph-file path because its loader does not properly validate the supplied path. The flaw requires low privileges and is limited to Q(10.0) and R(11.0) devices with Exynos 980, 9830, or 2100 before SMR Sep-2021 Release 1.

The record

CVE
CVE-2021-25452
Published
Sep 9, 2021
Updated
Aug 3, 2024
Vendor
Samsung Electronics Co., Ltd.
Product
Samsung Mobile Devices
Classifications
CWE-22, CWE-20, T1642
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 9, 2021CVE 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(10.0), R(11.0) devices with Exynos 980, 9830, 2100 chipset <SMR Sep-2021 Release 1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Samsung Electronics Co., Ltd. · Samsung Mobile Devicesversion=Q(10.0), R(11.0) devices with Exynos 980, 9830, 2100 chipset <SMR Sep-2021 Release 1

Published CVSS scores

5.5Samsung MobileCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9NIST NVDAV:L/AC:L/Au:N/C:N/I:N/A:C

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-20Improper Input Validation
T1642Endpoint Denial of Service

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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