Medium 4.8Published Sep 10, 2026

CVE-2026-76652Authenticated Directory Traversal Vulnerability in File Upload Functionality in TP-Link TL-MR6400 and Archer MR600

Updated under an hour ago (2026-10-19 10:23 UTC)

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It affects TP-Link Systems Inc. TL-MR6400 v8 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for TP-Link Systems Inc. TL-MR6400 v8

Exploited in the last 30 days

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.

CVSS: 4.8 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: TPLink
NVD analysis: Deferred
Record last updated: Sep 10, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TP-Link Systems Inc. TL-MR6400 v8 tp_link_systems:tl_mr6400_v8 (from the name)	before 1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n	CNA record
TP-Link Systems Inc. Archer MR600 tp_link_systems:archer_mr600 (from the name)	from v3 before MR600(EU)_V3_1.4.0 Build 260827; from v5 before MR600(EU)_V5_1.9.0 Build 260805; from v2 before MR600(EU)_V2_1.12.0 Build 2600826	CNA record

References

https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmwarepatch
https://www.tp-link.com/en/support/download/archer-mr600/v5/#Firmwarepatch
https://www.tp-link.com/us/support/faq/5292/vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.