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Archer Ax53 FirmwareOperating system · Tp Link

CVE-2025-61944

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 containing an excessive number of fields with zero‑length values.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 · moderate confidence

Heap-based buffer overflow in the tmpserver module of TP-Link Archer AX53 v1.0 allows authenticated adjacent attackers to send specially crafted network packets with excessive zero-length fields, potentially overflowing the heap and enabling code execution or causing denial of service via segmentation fault.

MitigationApply vendor firmware update to patched version; restrict adjacent network access to untrusted users and disable tmpserver service if possible until patched.

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. Confirm device model
    Log into the router web interface or check the device label to verify the exact model is TP-Link Archer AX53
    Affected if Model is not TP-Link Archer AX53, then not affected by this specific CVE
  2. Identify firmware version
    Access router administration panel, look under System or Firmware Upgrade settings to find the installed firmware version number
    Affected if Firmware version is 1.0 (exact match to affected version)
  3. Check tmpserver module status
    Look for tmpserver or temporary server settings in the router web interface under Advanced or Network settings; or access router via CLI and check for tmpserver process using 'ps' or similar command if SSH/Telnet is enabled
    Affected if tmpserver module is enabled and running on the device
  4. Assess network accessibility
    From a adjacent network segment (same LAN or connected via wired/wireless bridge), attempt to reach the tmpserver service port if known, or check firewall rules allowing adjacent access to router services
    Affected if Adjacent network attackers can reach tmpserver service without restriction
  5. Verify authentication state
    Check if default router credentials have been changed and whether guest network or any adjacent users have authentication access to router administration
    Affected if Adjacent attackers can authenticate to the router or tmpserver service

You are affected if you have a TP-Link Archer AX53 running firmware v1.0 with the tmpserver module enabled and accessible to 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

Apply vendor firmware update to patched version; restrict adjacent network access to untrusted users and disable tmpserver service if possible until patched.

Recommended fix Moderate confidence

Any firmware version newer than 1.3.1 Build 20241120

  1. 1. Visit the official TP-Link support page at https://www.tp-link.com/
  2. 2. Navigate to the Archer AX53 product support page
  3. 3. Download the latest firmware version available (newer than 1.3.1 Build 20241120)
  4. 4. Access the router's web management interface
  5. 5. Go to System > Firmware Upgrade or similar section
  6. 6. Upload and apply the new firmware file
  7. 7. Wait for the router to reboot and verify the upgrade was successful
Caveat Review TP-Link's firmware release notes for any configuration or feature changes between versions

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

Fix this in Archer Ax53 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
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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-2025-61944 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