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To determine whether a TP-Link router is affected, identify its exact model, hardware revision, regional variant and installed firmware, then compare those details with the affected-version and fixed-firmware tables in TP-Link’s official security advisories. A family name such as “Archer” or “TL-MR” is not sufficient: different hardware revisions and regional builds can have different exposure and fixes.
Use the procedure below before updating or replacing anything. If your exact revision is listed, install the fixed firmware for that same regional model. If the router is end-of-service or no fix exists, treat replacement as a security decision rather than assuming that an advisory covering another revision applies to yours.
What you need to check
Have the router, a device connected to its local network, and its administration credentials available. Record four identifiers before searching for an advisory:
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errors- Product model: the complete label, including suffixes such as “Archer MR600” or “TL-MR6400”.
- Hardware version: the revision shown as
Ver:X.Yon the product label or in the management interface. - Firmware version: the exact installed software build, including regional or custom suffixes.
- Region: the country or market for which the router and firmware were supplied.
Write these values down exactly. A small difference in revision or firmware string can change whether an advisory applies and which download is safe.
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Step 1: Find the exact model and hardware revision
Read the product label
Unplug the router only if necessary to turn it over safely and inspect the label on the underside or rear. Look for the model designation and a hardware marker formatted like Ver:4.0 or Ver:3.2. Do not confuse a serial number, MAC address or regulatory identifier with the hardware version.
TP-Link’s hardware-version guidance illustrates the label method in its documentation for upgrading a Deco system: check the device label for the Ver:X.Y string. The document is for Deco equipment, but the same type of revision marking is used across many TP-Link products.
Check the web management page
If the label is damaged or difficult to read, sign in to the router’s local web interface. On many current models, open Advanced > System > Firmware Upgrade. The page normally displays both software (firmware) and hardware versions. Menu names differ by model and firmware, so use the user guide for your exact product if that path is absent.
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Record the region
Note the country printed on the packaging or label and the regional TP-Link support site where the device was purchased. The same commercial model can have different firmware packages for the United States, the United Kingdom, the European Union and other markets. Regional or provider-customized builds may use different version strings and may receive a fix on a different schedule.
Step 2: Record the installed firmware
Copy the complete firmware value from the management page, including letters, punctuation and build suffixes. A number such as “1.3.6” without its full suffix may not be enough to match an advisory. If the interface offers an online update check, you can use it as an additional signal, but the security advisory and the exact download page remain the authority for determining whether a particular build is fixed.
Save a screenshot or text note containing the model, hardware version, firmware version and region. This prevents a common mistake: opening an advisory in one browser tab and downloading a package for a similarly named revision in another.
Step 3: Search TP-Link’s official security advisories
Start at the Product Security Trust Center
Use TP-Link’s Product Security Trust Center and its security-advisory list. Search by the model name and, when possible, by the CVE identifier. Open the complete advisory rather than relying on a search-result snippet.
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- 𝐁𝐄𝟑𝟔𝟎𝟎 𝐃𝐮𝐚𝐥-𝐁𝐚𝐧𝐝 𝐖𝐢-𝐅𝐢 𝟕 𝐑𝐨𝐮𝐭𝐞𝐫: Delivers up to 2882 Mbps (5 GHz), and 688 Mbps (2.4 GHz) speeds for 4K/8K streaming, AR/VR gaming & more. Dual-band routers do not support 6 GHz. Performance varies by conditions, distance, and obstacles like walls.
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For each advisory, inspect the affected-products table and compare all of the following:
- the exact product model;
- the listed hardware revision;
- the affected firmware range or version;
- the regional or custom firmware notation;
- the fixed firmware build and any installation notes.
An advisory addresses the vulnerability and versions named in that notice. A model absent from one notice is not proof that it has no other vulnerability, and a model-family match without a revision match is not enough to conclude that it is affected.
Use the affected and fixed columns together
Some tables list several hardware revisions under one model, with different affected and fixed builds. Match your installed version against the affected range first. If it falls within that range, use only the fixed build listed for your exact revision and region. If the table says a revision is not affected, retain the advisory record but do not install firmware intended for another revision.
Advisories can be updated after publication. Check the “last updated” date and revisit the page if TP-Link adds a regional build, changes a fixed version or publishes a mitigation.
Recent official examples that show why exact matching matters
The following entries were current examples checked on October 13, 2026. They illustrate the matching process; they are not a complete list of TP-Link vulnerabilities.
| Advisory | Issue and severity | Examples in the affected table | What to compare |
|---|---|---|---|
| CVE-2026-12001 Last updated August 11, 2026 |
Hardcoded credential material in firmware that could permit unauthorized access to privileged functions. CVSS v4.0: 5.2 (Medium). | TL-WR845N V4, TL-WR850N V3, TL-WR902AC V4, Archer C20 V6 and Archer MR200 V5, among other listed revisions. | Exact hardware revision, regional firmware string and the fixed build shown for that row. |
| CVE-2026-8619 Last updated August 19, 2026 |
Unauthenticated denial-of-service flaw in the HTTP service. CVSS v4.0: 7.1 (High). | TL-MR100 v3.2, Archer MR600 v2, TL-MR150 v3.20 and TL-MR6400 v8.0, with model-specific fixed builds. | Whether your model and revision appear in the affected table and which build TP-Link marks as fixed. |
| CVE-2026-12339 Last updated August 25, 2026 |
Authenticated arbitrary file write through a Zip Slip issue in the WebUI ISP Upgrade function. | Specific hardware revisions of TL-MR6400, Archer MR600, Archer MR200, TL-MR150 and TL-MR100. | The exact revision, affected firmware and any regional or custom fixed package; a model-name match alone is insufficient. |
Severity describes the advisory’s rating, not the probability that your individual router is exposed. TP-Link has not published a population-wide percentage showing how many TP-Link routers are affected, so do not infer prevalence from the number of advisories or from a CVSS score.
Step 4: Decide whether your installed build is affected
Your exact model, revision and firmware are listed
Treat the router as affected when the advisory’s row matches your model and hardware revision and your installed firmware falls within the stated affected range. Follow any temporary mitigation in the notice while preparing the update. If the advisory lists a fixed firmware, plan to install that build from the official support page for the same region.
Your model appears, but the revision does not
Do not extrapolate from another hardware revision. Hardware changes can alter the vulnerable component, bootloader, memory layout and compatible firmware. Continue checking TP-Link’s advisories and support page for your exact revision rather than flashing a package marked for a different one.
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Your model is not in the advisory
That means only that the particular notice does not list your device. It does not establish that the router is free of every vulnerability. Search the Trust Center for other advisories, confirm that the router still receives security support, and keep its firmware current through the approved update path.
Step 5: Install the correct fix safely
- Open the official support/download page. Select the exact product, hardware revision and country or region. Verify that the downloaded file’s model and revision labels match your notes.
- Read the advisory and release notes. Confirm that the file is the fixed build named for your row, and check whether an intermediate upgrade, reset or special procedure is required.
- Back up settings if the model supports it. Export configuration from the administration interface and record ISP credentials or custom settings that may be needed after an upgrade. Keep the backup private because it may contain network secrets.
- Use a stable local connection. Connect the computer by Ethernet when possible. Do not interrupt power, close the management page or switch networks while the router writes firmware.
- Upload the package through the router’s firmware-upgrade page. Follow the exact interface path for the model, commonly Advanced > System > Firmware Upgrade, then select the downloaded file and start the upgrade.
- Wait for the reboot to finish. Lights may change and the network may be unavailable temporarily. Do not press reset or unplug the router unless the model’s instructions explicitly direct you to do so.
- Verify after reboot. Sign in again, confirm the new firmware string and hardware revision, and check that internet access, Wi-Fi and any ISP-specific functions work.
- Recheck the advisory. Confirm that the installed build is the one TP-Link identifies as fixed. If the router reset to defaults, restore settings only after verifying the firmware.
Never use a package intended for another hardware revision, region or product family. A file that appears newer can still be incompatible and can leave the router unusable.
When TP-Link does not provide an automatic update
Some older devices do not support cloud-based or automatic firmware updates. TP-Link’s May 12, 2026 advisory for CVE-2023-50224 explains that certain legacy products cannot receive patches because of hardware limitations, platform age or a lack of test units. Where a legacy fix exists, installation may require downloading and applying the firmware manually.
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For a manual update, use the same safeguards: identify the exact revision and region, download only from TP-Link, preserve power and verify the post-update version. If the advisory says no patch is available, do not treat an unrelated firmware build as an unofficial substitute.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How end-of-service status changes the decision
Check the product’s support status on TP-Link’s support pages. TP-Link’s end-of-service guidance states: “Note that the affected products have reached their End of Service (EOS) and are no longer receiving active support, including security updates.” See the full end-of-service product support guidance for the vendor’s policy.
An EOS router may continue to function, but the absence of active security updates means a newly disclosed flaw may never receive a fix. If an affected EOS device is exposed to the internet, replacement is generally the safer path. For a supported router with a published fixed build, updating is normally preferable to replacing it solely because an advisory exists.
What to compare before replacing a router
Replacement is a conditional decision, not an automatic response to every vulnerability notice. Compare:
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- ISP and internet-plan compatibility: modem, fiber, cable, DSL or cellular requirements, plus authentication settings.
- Wi-Fi capability: the bands, standards, capacity and wired-port speeds your household actually needs.
- Support lifecycle: how the vendor publishes security fixes and how long the model is expected to receive them.
If your current device is unsupported or has no available fix, search for a replacement Wi-Fi router only after confirming these requirements. No single replacement model is established by the advisory information above.
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Recheck after you remediate
Security status is not permanent. TP-Link may add an affected revision, publish a regional build or update an advisory. Revisit the Trust Center periodically and after major firmware notices. Keep a simple record of the router’s model, revision, installed firmware and the date you last checked.
TP-Link says preliminary responses to vulnerability reports are typically within 5 working days, while remediation and mitigation typically take up to 90 days or longer. Those are descriptions of the vendor’s reporting process, not a guaranteed deadline for a particular router or CVE.
Troubleshooting common checking errors
The management page shows no hardware version
Inspect the physical label and consult the exact model’s manual. Some interfaces place version details under a different system-information or status page. Do not substitute the firmware version for the hardware revision.
The download page offers several regional files
Choose the country or region that matches the router’s intended market and the advisory’s row. If the advisory lists custom or provider firmware, follow that instruction instead of selecting a generic package.
The firmware number looks newer than the fixed version
Compare the complete build string and release notes. Version numbers can use different branches or regional suffixes; “newer-looking” digits alone do not prove that the build contains the advisory’s fix.
The router is listed, but the advisory has no fixed firmware
Apply any mitigation TP-Link provides, restrict management access from the internet where the model allows it, and monitor the advisory for updates. If the device is EOS or TP-Link confirms that no patch is possible, plan replacement rather than installing an unverified file.
The reliable test in one sentence
A TP-Link router should be considered affected only when its exact model, hardware revision, region and installed firmware match the affected entry in an official advisory; remediation means installing the fixed build for that same variant, or replacing the device when it is unsupported or cannot be patched.
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