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Archer Ax53 FirmwareOperating system · Tp Link

CVE-2025-62404

HIGH · 8.0 CVSS v3.1 Published 2026-02-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
82/100
Remediation priority · High
Zero-click

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
Heap-based Buffer Overflow vulnerability in TP-Link Archer AX53 v1.0 (tmpserver modules) allows authenticated adjacent attackers to cause a segmentation fault or potentially execute arbitrary code via a specially crafted network packet whose length exceeds the maximum expected value.This issue affects Archer AX53 v1.0: through 1.3.1 Build 20241120.

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

Heap-based buffer overflow in TP-Link Archer AX53 v1.0 tmpserver module. Authenticated adjacent attackers can send network packets with length exceeding the maximum expected value, causing heap memory corruption that leads to segmentation fault or potentially arbitrary code execution.

MitigationUpdate to patched firmware version when available. Restrict network access to the device's management interface and ensure strong authentication credentials to limit adjacent attack surface.

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
Archer Ax53 FirmwareOperating system
Affected:= 1.0

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
Adjacent
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/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 checks

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

  1. Identify device model
    Access the router web interface or check the device label to confirm the model is TP-Link Archer AX53
    Affected if Device is not TP-Link Archer AX53, then not affected by this specific CVE
  2. Check firmware version
    Log into the router web interface and navigate to Status or Administration > Firmware Upgrade to view the installed firmware version
    Affected if Firmware version is exactly 1.0, then the device is in the affected version range
  3. Verify tmpserver module is active
    Access router via SSH or telnet if enabled and check running processes for tmpserver, or examine /proc/*/cmdline for the tmpserver process
    Affected if tmpserver module is not running or not present, the specific exploitation vector may not be available
  4. Assess network exposure
    Check router firewall settings and network configuration to determine if the management interface (HTTP/HTTPS ports 80/443) is accessible from the local network segment or guest network
    Affected if Management interface is accessible from untrusted adjacent network segments, increasing the attack surface for adjacent attackers

Device is affected if it is a TP-Link Archer AX53 running firmware version 1.0 with the tmpserver module active and the management interface reachable from adjacent network attackers.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update to patched firmware version when available. Restrict network access to the device's management interface and ensure strong authentication credentials to limit adjacent attack surface.

Recommended fix Moderate confidence

Latest available firmware for Archer AX53 v1.0 (check TP-Link support for current version)

  1. 1. Visit the official TP-Link support website at https://www.tp-link.com/
  2. 2. Navigate to the Archer AX53 product support page
  3. 3. Download the latest firmware version available for v1.0
  4. 4. Access the router's web management interface
  5. 5. Navigate to System > Firmware Upgrade or similar section
  6. 6. Upload and apply the new firmware version
  7. 7. Verify the firmware upgrade was successful and the router restarts normally
Caveat Review release notes for any configuration or feature changes before upgrading

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

Fix this in Archer Ax53 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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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-2025-62404 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