CVE-2021-25377
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 · uneditedIntent redirection in Samsung Experience Service versions 10.8.0.4 in Android P(9.0) below, and 12.2.0.5 in Android Q(10.0) above allows attacker to execute privileged action.
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 confidenceIntent redirection vulnerability in Samsung Experience Service allows untrusted intents to be forwarded to privileged components, enabling attackers to bypass Android's inter-app communication restrictions and execute privileged actions. The vulnerability exists due to improper validation of incoming intents before forwarding them to sensitive components.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 10.8.0.4>= 12.2.0.5CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 checksWork through these to decide whether this CVE applies to you.
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Confirm device runs Samsung Experience ServiceCheck if Samsung Experience Service is installed on the device. This is a Samsung-specific component found on Samsung Android devices. Look for the app package named 'com.samsung.android.lool' or check app settings for Samsung Experience Service.Affected if Device is not a Samsung device or does not have Samsung Experience Service installed - this CVE does not apply.
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Identify Android OS versionCheck the Android version on the device: Settings > About Phone > Android version. Note whether it is Android P (9.0) and below, or Android Q (10.0) and above.Affected if This determines which version threshold applies - Android P/below uses 10.8.0.4 threshold, Android Q/above uses 12.2.0.5 threshold.
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Locate Samsung Experience Service versionCheck the version of Samsung Experience Service: Go to Settings > Apps > Samsung Experience Service (or com.samsung.android.lool), then view the App info to see the version name and version number.Affected if The specific version number cannot be determined from the device - you must obtain the exact installed version to compare against affected ranges.
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Compare installed version against affected rangesCompare the installed version number to the affected ranges: For Android P (9.0) and below, affected if version <= 10.8.0.4. For Android Q (10.0) and above, affected if version <= 12.2.0.5. Versions 10.8.0.5 and later on Android P, or 12.2.2.0.6 and later on Android Q, are patched.Affected if Installed version falls within the affected range for the detected Android version.
A Samsung device is affected if it runs Android P (9.0) or below with Samsung Experience Service version 10.8.0.4 or lower, or runs Android Q (10.0) or above with version 12.2.0.5 or lower.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUpdate Samsung Experience Service to version 10.8.0.4 or later on Android P(9.0) and below, or version 12.2.0.5 or later on Android Q(10.0) and above. For developers, implement strict intent validation and avoid passing untrusted intents to sensitive components without validation.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-25377 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-25377 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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