CVE-2026-3294 json
Authentication Logic Vulnerability on Multiple TP-Link Range Extenders
published 2026-05-22 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31502
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 34%
- public exploits
- 0
- none known
Summary
An authentication logic vulnerability in multiple TP-Link range extenders allows an unauthenticated attacker on an adjacent network to manipulate a login parameter and reset the administrator password due to insufficient validation.
Successful exploitation allows an attacker to obtain full administrative control of the affected device, potentially impacting on confidentiality, integrity, and availability.
Patch / fix
- TP-Link Systems Inc. Archer RE650 v1 V1_20260429
- TP-Link Systems Inc. Archer RE305 v1 V1_20260515
- TP Link Systems Inc. Archer RE360 v1 V1_20260515
- TP-Link Systems Inc. TL-WA860RE v4 V4_20260515
- TP-Link Systems Inc. RE580D v1 V1_20260515
- tp-link.com/en/support/download/re650/v1/#Firmware patch
- tp-link.com/us/support/download/re650/v1/#Firmware patch
- tp-link.com/us/support/download/re305/v1/#Firmware patch
- tp-link.com/en/support/download/re305/v1/#Firmware patch
- tp-link.com/us/support/download/re360/v1/#Firmware patch
- tp-link.com/en/support/download/re360/v1/#Firmware patch
- tp-link.com/us/support/download/tl-wa860re/v4/#Firmware patch
- tp-link.com/en/support/download/tl-wa860re/v4/#Firmware patch
- tp-link.com/en/support/download/re580d/#Firmware patch
- tp-link.com/us/support/download/re580d/#Firmware patch
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 5 mo ago
Exploit prediction
0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- TP-Link Systems Inc. Archer RE650 v1
- TP-Link Systems Inc. Archer RE305 v1
- TP Link Systems Inc. Archer RE360 v1
- TP-Link Systems Inc. TL-WA860RE v4
- TP-Link Systems Inc. RE580D v1
Classification
References
-
tp-link.com
/en/support/download/re650/v1/#Firmware
patch, product
-
tp-link.com
/us/support/download/re650/v1/#Firmware
patch, product
-
tp-link.com
/us/support/download/re305/v1/#Firmware
patch, product
-
tp-link.com
/en/support/download/re305/v1/#Firmware
patch, product
-
tp-link.com
/us/support/download/re360/v1/#Firmware
patch, product
-
tp-link.com
/en/support/download/re360/v1/#Firmware
patch, product
-
tp-link.com
/us/support/download/tl-wa860re/v4/#Firmware
patch, product
-
tp-link.com
/en/support/download/tl-wa860re/v4/#Firmware
patch, product
-
tp-link.com
/en/support/download/re580d/#Firmware
patch, product
-
tp-link.com
/us/support/download/re580d/#Firmware
patch, product
-
tp-link.com
/us/support/faq/5101/
vendor-advisory
Sources
- CVE List CVE-2026-3294
- NVD CVE-2026-3294
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.