CVE-2020-11235
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 · uneditedBuffer overflow might occur while parsing unified command due to lack of check of input data received in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking
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 confidenceA buffer overflow vulnerability exists in the unified command parsing functionality of Qualcomm Snapdragon chipsets. The vulnerability stems from insufficient validation of input data before processing, allowing an attacker to overflow a buffer by providing specially crafted input during unified command parsing.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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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Identify the Snapdragon chipset modelQuery the system or device firmware to retrieve the chipset identifier. On Linux systems, this may be available via 'cat /proc/cpuinfo' or by checking boot logs, dmesg, or system information files. On Android devices, check Build information or use 'getprop' commands.Affected if The chipset model matches one of the affected variants: Apq8009, Apq8017, Apq8053, Apq8064au, Apq8076, Apq8084, Apq8092, or Apq8094.
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Verify firmware versionRetrieve the firmware or baseband firmware version associated with the identified chipset. This may be accessible through system properties, modem logs, or device diagnostic interfaces.Affected if Any firmware version is present on an affected chipset, as all versions of these chipsets are vulnerable.
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Confirm unified command parsing feature existsIdentify whether the unified command parsing functionality is present in the firmware. This is typically a firmware-level component; check modem, radio, or system firmware components for evidence of this parsing module.Affected if The unified command parsing module is present and operational on the affected chipset.
The environment is affected if it utilizes any of the listed Snapdragon chipset models (Apq8009, Apq8017, Apq8053, Apq8064au, Apq8076, Apq8084, Apq8092, or Apq8094) with unified command parsing functionality present, regardless of firmware version.
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 vendor-supplied firmware/security patch from Qualcomm that addresses the input validation deficiency in unified command parsing. Organizations should identify and update all affected Snapdragon-based devices and products.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $11,776.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-11235 — 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-2020-11235 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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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.
- 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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