CVE-2020-26597
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 LG mobile devices with Android OS 9.0 and 10 software. The Wi-Fi subsystem has incorrect input validation, leading to a crash. The LG ID is LVE-SMP-200022 (October 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 confidenceLG mobile devices with Android OS 9.0 and 10 contain an input validation vulnerability in the Wi-Fi subsystem. The incorrect input validation leads to a denial of service condition causing the Wi-Fi functionality to crash.
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= 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Identify device manufacturerRun `getprop ro.product.manufacturer` or `getprop ro.brand` in adb shell to confirm the device is LGAffected if Manufacturer is not LG, the device is not affected by this specific CVE
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Check Android OS versionRun `getprop ro.build.version.release` in adb shell or check in Settings > About Phone > Android versionAffected if Android version is not 9.0 or 10.0 - the device falls outside the affected version range
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Confirm Wi-Fi subsystem is presentVerify Wi-Fi hardware exists by checking for wlan0 interface: `ip link show` in adb shell, or check if Wi-Fi is toggleable in SettingsAffected if Device lacks Wi-Fi hardware or Wi-Fi functionality - the vulnerability cannot be triggered
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Check if Wi-Fi is currently enabledRun `settings get global wifi_on` in adb shell, or inspect the Wi-Fi toggle status in SettingsAffected if Wi-Fi is enabled and actively used - the denial of service condition can occur when the malformed input is processed
Device is affected if it is an LG mobile device running Android 9.0 or 10.0 with Wi-Fi functionality present and enabled, as the input validation flaw in the Wi-Fi subsystem can trigger the denial of service condition.
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 vendor-supplied security patches from LG for affected Android 9.0 and 10 devices. If no patch is available, consider network segmentation to limit exposure and disable Wi-Fi in untrusted environments.
- Consultation4.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,584.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-26597 — 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-2020-26597 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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