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Tl Wr941nd V2 FirmwareOperating system · Tp Link

CVE-2022-46435

HIGH · 8.8 CVSS v3.1 Published 2022-12-20
Fix available
A fix is available. Upgrade to after 3.13.9 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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 · unedited
An issue in the firmware update process of TP-Link TL-WR941ND V2/V3 up to 3.13.9 and TL-WR941ND V4 up to 3.12.8 allows attackers to execute arbitrary code or cause a Denial of Service (DoS) via uploading a crafted firmware image.

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 confidence

The TP-Link TL-WR941ND wireless router (V2/V3 up to firmware 3.13.9 and V4 up to 3.12.8) contains a vulnerability in its firmware update mechanism. The device fails to properly validate or sanitize crafted firmware images uploaded during the update process, allowing an attacker to achieve arbitrary code execution or trigger a denial of service condition.

MitigationApply the latest patched firmware version from TP-Link if available; if the device is end-of-life and no patch exists, replace the device or implement network segmentation to restrict access to the firmware update interface.

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
Tl Wr941nd V2 FirmwareOperating system
Affected:<= 3.13.9
Tl Wr941nd V3 FirmwareOperating system
Affected:<= 3.13.9
Tl Wr941nd V4 FirmwareOperating system
Affected:<= 3.12.8

CVSS 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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm device model is TL-WR941ND
    Inspect the device label or access the router web interface (typically at 192.168.0.1) and check the device model displayed on the status or management page
    Affected if Device is not a TL-WR941ND - different models are not affected by this CVE
  2. Identify hardware version (V2, V3, or V4)
    Check the sticker on the router device itself or look for hardware version information in the web interface under Status or System > Hardware Info
    Affected if Hardware version is not V2, V3, or V4 - other hardware versions may have different patch status
  3. Locate firmware version in web interface
    Login to the router web interface, navigate to Status page or System Tools > Firmware Upgrade, and note the displayed firmware version number
    Affected if Unable to retrieve firmware version from the interface
  4. Compare V2/V3 firmware version against affected range
    If hardware version is V2 or V3, compare the installed firmware version (for example, 3.13.9) to the affected range: any version <= 3.13.9 is vulnerable
    Affected if Firmware version is V2 or V3 and is <= 3.13.9 - the device is affected by the vulnerable update mechanism
  5. Compare V4 firmware version against affected range
    If hardware version is V4, compare the installed firmware version to the affected range: any version <= 3.12.8 is vulnerable
    Affected if Firmware version is V4 and is <= 3.12.8 - the device is affected by the vulnerable update mechanism

The device is affected if it is a TL-WR941ND with hardware version V2 or V3 running firmware <= 3.13.9, or hardware version V4 running firmware <= 3.12.8.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 3.13.9
Interim mitigation

Apply the latest patched firmware version from TP-Link if available; if the device is end-of-life and no patch exists, replace the device or implement network segmentation to restrict access to the firmware update interface.

Recommended fix Moderate confidence

Latest firmware version available on TP-Link support website for TL-WR941ND (V2/V3/V4) - versions higher than 3.13.9 for V2/V3 and higher than 3.12.8 for V4

  1. 1. Navigate to the official TP-Link support page: https://www.tp-link.com/support/
  2. 2. Enter "TL-WR941ND" in the search or support lookup field
  3. 3. Select your specific hardware version (V2, V3, or V4)
  4. 4. Locate the firmware download section
  5. 5. Download the latest available firmware version for your hardware version
  6. 6. Access your router's web management interface (typically http://192.168.0.1 or http://192.168.1.1)
  7. 7. Navigate to System Tools > Firmware Upgrade (or similar path)
  8. 8. Upload the downloaded firmware file and initiate the upgrade
Caveat Review TP-Link release notes for any configuration or feature changes between versions; backup router configuration before upgrading if possible

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Tl Wr941nd V2 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-46435 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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