Home/CVE/Insufficient verification of data authenticity in PackageManagerService prior to SMR Mar-2026 Release 1 allows local att
CVE

CVE-2026-21023

Insufficient verification of data authenticity in PackageManagerService prior to SMR Mar-2026 Release 1 allows local att

Insufficient verification of data authenticity in PackageManagerService prior to SMR Mar-2026 Release 1 allows local attackers to modify the installation restriction of specific application.

MEDIUM · CVSS 5.5 EPSS 3e-05
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

1
samsung androidall versions
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Scoring & Timeline

5.5
MEDIUM · CVSS v3.1 · mobile.security@samsung.com
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Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Apr 2026 · 05:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=03Vendor Advisory
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