CVE-2021-37564
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 · uneditedMediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols. (Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 2.0.2; Out-of-bounds read).
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 confidenceAn out-of-bounds read vulnerability exists in MediaTek chipsets (MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915) when handling IEEE 1905 protocol messages. The vulnerability allows an attacker to cause the device to read memory outside of allocated buffer boundaries, potentially leading to information disclosure or denial of service. Affected software versions include 2.0.2 as used in NETGEAR devices.
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= 2.0.2= 2.0.2= 2.0.2= 2.0.2= 2.0.2= 2.0.2= 2.0.2CVSS 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 the chipset modelCheck the device hardware specifications, firmware details, or system logs to determine if the device uses one of the following MediaTek chipsets: MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, or MT7915Affected if The device does not use any of the listed MediaTek chipsets
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Check the firmware versionAccess the device firmware settings, web interface, or use CLI commands (such as 'cat /proc/version', 'ver', or manufacturer-specific commands) to retrieve the installed firmware versionAffected if The firmware version is exactly 2.0.2 on any of the affected MediaTek chipsets
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Verify IEEE 1905 protocol statusCheck the device network settings, wireless configuration, or protocol logs for IEEE 1905 (1905.1) protocol support or enablement. This may be found under advanced wireless settings, mesh networking options, or protocol stacksAffected if IEEE 1905 protocol is enabled or configured on the device
A device is affected if it uses a MediaTek MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, or MT7915 chipset with firmware version 2.0.2 and has the IEEE 1905 protocol enabled.
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-provided firmware updates from MediaTek and device manufacturers (NETGEAR, etc.) that address this vulnerability. Until patches are available, consider network segmentation to limit exposure of affected devices.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 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 $6,144.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-37564 — 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-2021-37564 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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