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TI-2026-53560 Aliases CVE-2026-76652GHSA-q3j6-99qm-jjmm

Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600

Priority LOW 23CWE-22Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
High
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

An authenticated directory traversal vulnerability in file upload functionality has been identified in Archer MR600 (v2, v3 & v5) and TL-MR6400 v8. Due to insufficient validation of user-supplied file information, an authenticated remote attacker with access to the affected upload functionality could upload a specially crafted file and cause it to be written outside the intended directory. Successful exploitation could allow an authenticated remote attacker to write files to unintended locations, potentially overwriting or modifying files accessible to the affected service; arbitrary code execution has not been demonstrated.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00732 54th percentileScored 2026-11-07
Fix Fixed TL-MR6400 v8 (TP-Link Systems Inc.): 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978nArcher MR600 (TP-Link Systems Inc.): MR600(EU)_V3_1.4.0 Build 260827, MR600(EU)_V5_1.9.0 Build 260805, MR600(EU)_V2_1.12.0 Build 2600826

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkTL-MR6400 v8before 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978nPatch availableCNA
TP-LinkArcher MR600v3 to before MR600(EU)_V3_1.4.0 Build 260827; v5 to before MR600(EU)_V5_1.9.0 Build 260805; v2 to before MR600(EU)_V2_1.12.0 Build 2600826MR600(EU)_V3_1.4.0 Build 260827, MR600(EU)_V5_1.9.0 Build 260805, MR600(EU)_V2_1.12.0 Build 2600826Patch availableCNA
  • TL-MR6400 v8 VendorTP-Link Affected before 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n Fixed in 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n Patch available CNA
  • Archer MR600 VendorTP-Link Affected v3 to before MR600(EU)_V3_1.4.0 Build 260827; v5 to before MR600(EU)_V5_1.9.0 Build 260805; v2 to before MR600(EU)_V2_1.12.0 Build 2600826 Fixed in MR600(EU)_V3_1.4.0 Build 260827, MR600(EU)_V5_1.9.0 Build 260805, MR600(EU)_V2_1.12.0 Build 2600826 Patch available CNA

Remediation

  • Fix · CNA TL-MR6400 v8 (TP-Link Systems Inc.) Fixed in 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n
  • Fix · CNA Archer MR600 (TP-Link Systems Inc.) Fixed in MR600(EU)_V3_1.4.0 Build 260827, MR600(EU)_V5_1.9.0 Build 260805, MR600(EU)_V2_1.12.0 Build 2600826

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    TP-Link Systems Archer MR600, TL-MR6400 v8 — tp-link.com/us/support/faq/5292

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-53561 Missing Authentication in VPN Configuration Management in TP-Link TL-MR6400 and Archer MR600Priority LOW 25
    Show all 2 records → Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-76652
  2. 2026-10-03 Alias added: GHSA-q3j6-99qm-jjmm

References

Patch 2

Advisory 1

  • TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
  • TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
  • TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
  • TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
  • TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
See all 636 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences