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TI-2020-08797 Aliases CVE-2020-10916GHSA-rvvm-x4j5-wgw3

Improper authentication in TP-Link TL-WA855RE

Priority LOW 37CWE-287Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

This vulnerability allows network-adjacent attackers to escalate privileges on affected installations of TP-Link TL-WA855RE Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361] Wi-Fi extenders. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the first-time setup process. The issue results from the lack of proper validation on first-time setup requests. An attacker can leverage this vulnerability to reset the password for the Admin account and execute code in the context of the device. Was ZDI-CAN-10003.

Why it matters now

EPSS 0.0112 66th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
TP-LinkTL-WA855REFirmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361]—No fix listedCNA
  • TL-WA855RE VendorTP-Link Affected Firmware Ver: 855rev4-up-ver1-0-1-P1[20191213-rel60361] Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:tp-link:tl-wa855re_firmware:190408:*:*:*:*:*:*:*190408VulnerableTP-Link
cpe:2.3:o:tp-link:tl-wa855re_firmware:191213:*:*:*:*:*:*:*191213VulnerableTP-Link
cpe:2.3:h:tp-link:tl-wa855re:v4:*:*:*:*:*:*:*v4Running onTP-Link
  • cpe:2.3:o:tp-link:tl-wa855re_firmware:190408:*:*:*:*:*:*:* Versions 190408 Vulnerable ·TP-Link
  • cpe:2.3:o:tp-link:tl-wa855re_firmware:191213:*:*:*:*:*:*:* Versions 191213 Vulnerable ·TP-Link
  • cpe:2.3:h:tp-link:tl-wa855re:v4:*:*:*:*:*:*:* Versions v4 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10916
  2. 2026-10-03 Alias added: GHSA-rvvm-x4j5-wgw3

References

Advisory 1

  • TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8

Sources

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