SecOps SignalSecurity Intelligence Workspace
Loading collection status
Vulnerabilities/CVE-2021-25369Public Intelligence Dossier
Source: samsung · Limited verification•Last verified: •Collection Degraded
CVE-2021-25369ListedMEDIUM (raw)CVSS 6.2CWE-200

An improper access control vulnerability in sec_log file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace.

Published: 27 Mar 2021•Last updated: 17 Jun 2026, 09:11 AM IST•Source identifier: mobile.security@samsung.com
Dossier completeness: source-provided sections 3 / 3 · rule guidance not available. Missing source facts count as incomplete.
Official source
CISA KEV catalog
Listed
Added08 Nov 2022
Due29 Nov 2022
RansomwareUnknown
CVSS score
6.2MEDIUM (raw)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Metric sourcemobile.security@samsung.com
EPSS probability
1.1%0.011
Percentile65th
Weakness type
CWE-200
NVD-CWE-Other
Remediation
Patch status unknown
No fixed version or KB recorded

Why It Matters

Analysis dossier

Why It Matters

An improper access control vulnerability in sec_log file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace.

SOC priority

Immediate Attention

Actively exploited (source statement)

Yes

Publicly disclosed

Unknown

Risk basis: CISA KEV exploitation signal; Source-confirmed exploitation or CISA KEV/ransomware metadata

Affected Products & Remediation

1 source-backed product
Affected products and versions (source)
  • samsung android · 8.0; 8.1; 9.0; 10.0 · NVD CPE · Source
Recorded patch / KBNot provided by source

Vendor or catalog guidance (source)

  • CISA KEV: Apply updates per vendor instructions.

Known exploitation (source facts)

Only what a source states. Unknown means no source has said either way; it is not "not exploited".

CISA KEV
Listed
Exploited (source statement)
Yes
Publicly disclosed (source)
Unknown

CISA required action: Apply updates per vendor instructions.

Suggested hunting (rule-based inference)

SecOps Signal recommendation (rule-based inference). These steps are hunting hypotheses from the vulnerability class; they do not state or imply that exploitation occurred here or anywhere.

No rule-based guidance for this vulnerability class

CISA KEV Record

Catalog entry
08 Nov 2022
Required action due
29 Nov 2022
Known ransomware use
Unknown

Apply updates per vendor instructions.

Change History & Source Data

— No recorded material change

CNA / source
mobile.security@samsung.com
Record status · verification
UPDATED · CISA KEV confirmed
CPE
cpe:2.3:o:samsung:android:8.0:-:*:*:*:*:*:*, cpe:2.3:o:samsung:android:8.1:-:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-apr-2019-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-apr-2020-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-aug-2019-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-aug-2020-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-dec-2018-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-dec-2019-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-dec-2020-r1:*:*:*:*:*:*, cpe:2.3:o:samsung:android:9.0:smr-feb-2019-r1:*:*:*:*:*:*

Evidence & Provenance

4 public sources
CISA KEV CatalogAdded 2022-11-08security.samsungmobile.comSource recordnvd.nist.govSource recordsecurity.samsungmobile.comSource record

Linked by the query's stored exact CVE association. Review required tables and validation status before use.

Detection Hunting Query
Target: DeviceTvmSoftwareVulnerabilities•Defender XDR
Detect endpoints exposed to CVE-2021-25369
Purpose: Exposure assessment (Category: Exposure Check)Why linked: Query metadata names CVE-2021-25369
DeviceTvmSoftwareVulnerabilities| where CveId == "CVE-2021-25369"| project DeviceId, DeviceName, OSPlatform, OSVersion, SoftwareVendor, SoftwareName, SoftwareVersion, CveId, VulnerabilitySeverityLevel, RecommendedSecurityUpdate, RecommendedSecurityUpdateId| sort by VulnerabilitySeverityLevel desc
Schema Checked · Not runtime validatedSource: SecOps Signal deterministic template · Limited verificationStatic screening: Passed structure and schema checks; tenant execution is not verified.
Open KQL Library

Looking up related community queries…

Loading related intelligence

Correlated briefings

SecOps Signal surfaces public advisory facts only. A missing value means the source has not published it, not that your environment is unaffected. No tenant inventory is connected.