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VulnerabilityAwaiting classification

CVE-2026-21057

MEDIUM · 6.8 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 →
70/100
Remediation priority · Elevated
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 input validation in Samsung Pass prior to version 5.2.10.3 allows local privileged attackers to write out-of-bounds memory.

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 · high confidence

This is a memory corruption vulnerability in Samsung Pass where improper input validation allows a local privileged attacker to write to memory locations outside the intended buffer boundaries. The vulnerability stems from insufficient bounds checking on user-supplied input, which could be exploited to achieve code execution or cause a denial-of-service condition.

MitigationUpdate Samsung Pass to version 5.2.10.3 or later. Organizations should verify that managed mobile devices have the updated version deployed.

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
High
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/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. Verify Samsung Pass is installed
    Check device for Samsung Pass app in the application list, or query via device management console/mobile device management (MDM) tool
    Affected if Samsung Pass app is present on the device
  2. Identify the installed Samsung Pass version
    Use device settings (Apps > Samsung Pass > App info), MDM software, or Android ADB command: `adb shell dumpsys package com.samsung.android.spass` to retrieve the versionName or versionCode
    Affected if Version cannot be determined or is older than 5.2.10.3
  3. Confirm device is a Samsung mobile device
    Check device model information via Settings > About phone, or MDM inventory data. Samsung Pass is only available on Samsung devices
    Affected if Device is a Samsung mobile device and Samsung Pass version is below 5.2.10.3
  4. Assess whether the device receives external input through Samsung Pass
    Review if Samsung Pass is actively used for credential autofill, biometric authentication integration, or connected to third-party apps that pass data to Samsung Pass. Check app permissions and usage logs if available
    Affected if Samsung Pass is installed on a Samsung device, version is below 5.2.10.3, and the app processes user-supplied or external input

The device is affected if Samsung Pass is installed on a Samsung mobile device and the installed version is earlier than 5.2.10.3, as the vulnerability allows memory corruption via improper input validation in Samsung Pass.

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

Update Samsung Pass to version 5.2.10.3 or later. Organizations should verify that managed mobile devices have the updated version deployed.

Recommended fix Moderate confidence

Samsung Pass version 5.2.10.3 or later

  1. Open the Samsung Pass app on your Samsung device
  2. Navigate to Settings or the app's menu
  3. Check the current version of Samsung Pass
  4. Update Samsung Pass through the Samsung Galaxy Store or Google Play Store to version 5.2.10.3 or later
  5. Verify the update was successful by checking the app version again

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

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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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-2026-21057 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