CVE-2022-40519
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 · uneditedInformation disclosure due to buffer overread in Core
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 · low confidenceA buffer overread vulnerability in an unspecified 'Core' component allows an attacker to read beyond the boundaries of an allocated memory buffer, potentially exposing sensitive information from memory. This type of flaw occurs when the code fails to properly validate buffer limits before reading data.
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
- None
- Availability
- None
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 Qualcomm chip or firmware in useExamine system hardware information, boot logs, or device specifications to determine the exact Qualcomm product model (e.g., Aqt1000, Ar8031, Ar8035, Csr8811, Csra6620, Csra6640, Csrb31024, or Fsm10056)Affected if The identified hardware or firmware matches any of the eight affected product names listed in the CVE
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Retrieve the firmware versionCheck the firmware version through device management interfaces, system information files, boot logs, or vendor-specific tools (such as 'cat /proc/version', 'dmesg', or vendor diagnostic utilities)Affected if The firmware version is any version at all, since the CVE lists all versions as affected
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Confirm the device uses Qualcomm Aqt1000, Ar8031, Ar8035, Csr8811, Csra6620, Csra6640, Csrb31024, or Fsm10056 firmwareReview network device information, embedded system documentation, or hardware BOM (Bill of Materials) to verify the specific chipset or firmware in useAffected if The device or system incorporates any of these eight specific Qualcomm firmware products, regardless of version
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Assess exposure to network attack surfaceDetermine if the affected firmware component is accessible to untrusted input or network-adjacent attackers, as the vulnerability allows memory reads beyond buffer boundariesAffected if The vulnerable Core component processes untrusted data or is network-accessible
A system is affected if it contains any of the eight listed Qualcomm firmware products (Aqt1000, Ar8031, Ar8035, Csr8811, Csra6620, Csra6640, Csrb31024, Fsm10056), since all versions of these firmwares contain the buffer overread vulnerability in an unspecified Core component.
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-provided patch when available. In general, remediate buffer overreads by ensuring all buffer accesses include proper bounds checking and use secure memory access functions that prevent reading past buffer boundaries.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40519 — 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-2022-40519 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
- No spam, self-promotion, credentials, or personal data