TI-2023-18914 Aliases CVE-2023-37284 GHSA-q6vv-hfwj-rw6g

Improper authentication in TP-Link Archer C20

MEDIUM 40CWE-287Published 2023-09-06 · Updated 2024-09-26

Key facts

Attack vector: Adjacent network
Privileges required: None
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

Improper authentication vulnerability in Archer C20 firmware versions prior to 'Archer C20(JP)_V1_230616' allows a network-adjacent unauthenticated attacker to execute an arbitrary OS command via a crafted request to bypass authentication.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00406 35th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
TP-Link	Archer C20	firmware versions prior to 'Archer C20(JP)_V1_230616'	—	No fix listed	CNA

Archer C20 VendorTP-Link Affected firmware versions prior to 'Archer C20(JP)_V1_230616' Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:tp-link:archer_c20_firmware::::::::	before 230616	Vulnerable	TP-Link
cpe:2.3:h:tp-link:archer_c20:1:::::::*	1	Running on	TP-Link

cpe:2.3:o:tp-link:archer_c20_firmware:*:*:*:*:*:*:*:* Versions before 230616 Vulnerable ·TP-Link
cpe:2.3:h:tp-link:archer_c20:1:*:*:*:*:*:*:* Versions 1 Running on ·TP-Link

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2023-37284
2026-10-03 Alias added: GHSA-q6vv-hfwj-rw6g

References

Advisory 1

https://jvn.jp/en/vu/JVNVU99392903/

Other 1

https://www.tp-link.com/jp/support/download/archer-c20/v1/#Firmware

TI-2026-00615 Logic Vulnerability on TP-Link Archer C20, Archer AX53 and TL-WR841N v13 CVSS 4.0HIGH 7.2
TI-2026-52913 Command Injection in Router Web Management Interface CVSS 4.0HIGH 8.5
TI-2023-14256 TP-LINK Archer C50v2 Archer C50(US)_V2_160801, TP-LINK Archer C20v1 Archer_C20_V1_150707… CVSS 3.1HIGH 7.5
TI-2025-14190 LAN Code Execution on TP-Link Archer MR200, Archer C20, TL-WR850N and TL-WR845N CVSS 4.0MEDIUM 5.9

Sources

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