CVE-2020-10848
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 · uneditedAn issue was discovered on Samsung mobile devices with O(8.x), P(9.0), and Q(10.0) (Exynos 9810 chipsets) software. Arbitrary memory mapping exists in TEE. The Samsung ID is SVE-2019-16665 (February 2020).
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 confidenceAn arbitrary memory mapping vulnerability exists in the Trusted Execution Environment (TEE) on Samsung mobile devices powered by Exynos 9810 chipsets running Android O (8.x), P (9.0), and Q (10.0). This flaw could allow an attacker to map arbitrary memory regions within the TEE, potentially leading to code execution or data exposure in the secure enclave.
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= 8.0= 8.1= 9.0= 10.0CVSS 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
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Verify the device uses an Exynos 9810 chipsetCheck the processor/model information in Settings > About Phone > Model or using the command 'getprop ro.hardware' or 'cat /proc/cpuinfo' to identify the chipsetAffected if The device is not powered by Exynos 9810, then it is not affected by this specific vulnerability
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Confirm the Android version is 8.0, 8.1, 9.0, or 10.0Navigate to Settings > About Phone > Android version or run 'getprop ro.build.version.release'Affected if The Android version falls within 8.0 to 10.0 inclusive, placing it within the affected OS range
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Check the TEE is accessible or enabledExamine if the Trusted Execution Environment is active by reviewing TEE-related services or kernel configurations; this may require root access or checking /proc/tee/ if availableAffected if The TEE is present and accessible on the device, making the memory mapping flaw potentially exploitable
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Determine the installed security patch levelGo to Settings > About Phone > Security patch level or execute 'getprop ro.build.version.security_patch'Affected if The security patch level is dated February 2020 or earlier, indicating the device has not received the mitigation for SVE-2019-16665
The device is affected if it uses an Exynos 9810 chipset, runs Android 8.0-10.0, has an accessible TEE, and has a security patch level older than February 2020.
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 dataApply the Samsung security patch released in February 2020 (SVE-2019-16665). Users should update their devices to the latest available security update level to remediate this vulnerability.
- Consultation4.0 h
- Implementation2.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-10848 — 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-2020-10848 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
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