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VulnerabilityAwaiting classification

CVE-2026-21041

MEDIUM · 6.9 CVSS v4.0 Published 2026-07-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
Remediation priority · Elevated
No privileges Zero-click 6 weeks old

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper access control in SamsungSEAgentService prior to SMR Jul-2026 Release 1 allows local attackers to access sensitive information.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an improper access control vulnerability in SamsungSEAgentService, a system agent service in Samsung mobile devices. The flaw allows local attackers (with physical access or malware running on the device) to bypass access controls and read sensitive information that should be protected. The vulnerability exists in versions prior to the SMR July-2026 Release 1 security patch.

MitigationApply the Samsung SMR July-2026 Release 1 security update or later to devices running the affected SamsungSEAgentService. This is a standard Samsung security patch that should be deployed via the normal firmware update process.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm device is a Samsung mobile device
    Check the device manufacturer in Settings > About Phone > Manufacturer or Model. SamsungSEAgentService is a Samsung-specific component.
    Affected if The device is not a Samsung mobile device (this vulnerability only affects Samsung devices)
  2. Check the Android security patch level
    Navigate to Settings > About Phone > Software Information > Security Patch Level. This displays the date of the installed Samsung security update.
    Affected if The Security Patch Level date is earlier than July 2026 (the SMR July-2026 Release 1 contains the fix)
  3. Verify SamsungSEAgentService is present
    Check running system services via ADB with 'adb shell dumpsys | grep -i SamsungSEAgentService' or use a device info app to list system services.
    Affected if SamsungSEAgentService is present and running on the device (the vulnerability exists in this service)
  4. Confirm the SamsungSEAgentService version if accessible
    If available, inspect the app version for SamsungSEAgentService via ADB: 'adb shell pm list packages | grep -i seagent' then check version info.
    Affected if The version is any version released before the SMR July-2026 Release 1 security patch

A Samsung mobile device with a security patch level earlier than July 2026 that has SamsungSEAgentService present is affected by this improper access control vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the Samsung SMR July-2026 Release 1 security update or later to devices running the affected SamsungSEAgentService. This is a standard Samsung security patch that should be deployed via the normal firmware update process.

Recommended fix Moderate confidence

SMR Jul-2026 Release 1

  1. Identify your specific Samsung device model and current SMR (Samsung Maintenance Release) version
  2. Navigate to Settings > About Phone > Software Information to check current SMR version
  3. Check if your device has SMR Jul-2026 Release 1 available
  4. If available, navigate to Settings > Software Update and download/install the latest update
  5. Verify the update was successfully applied by rechecking the SMR version
Caveat Users should backup important data before performing software updates as a precaution

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-21041 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data