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Vulnerability record · CVE-2026-22220 · published 3 February 2026

CVE-2026-22220: Tp-link archer be230 firmware improper input validation vulnerability

Tp Link · Archer Be230 Firmware

A lack of proper input validation in the HTTP processing path in TP-Link Archer BE230 v1.2 (web modules) may allow a crafted request to cause the device’s web service to become unresponsive, resulting in a denial of service condition. A network adjacent attacker with high privileges could cause the device’s web interface to temporarily stop responding until it recovers or is rebooted. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

6.8 CVSS 4.0 Medium EPSS 0.24% · top 86.0% CWE-20 · Improper input validation
6.8CVSS 4.0 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

A lack of proper input validation in the HTTP processing path in TP-Link Archer BE230 v1.2 (web modules) may allow a crafted request to cause the device’s web service to become unresponsive, resulting in a denial of service condition. A network adjacent attacker with high privileges could cause the device’s web interface to temporarily stop responding until it recovers or is rebooted. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.

CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tp-link.com/en/support/download/archer-be230/v1.20/#Firmware Product
https://www.tp-link.com/sg/support/download/archer-be230/v1.20/#Firmware Product
https://www.tp-link.com/us/support/download/archer-be230/v1.20/#Firmware Product
https://www.tp-link.com/us/support/faq/4941/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.6CVE-2026-22229Tp-link archer be230 firmware os command injection vulnerabilityA command injection vulnerability may be exploited after the admin's authentication via the import of a crafted VPN client configuration file on the …EPSS 2.1%8.5CVE-2026-22225Tp-link archer be230 firmware os command injection vulnerabilityA command injection vulnerability may be exploited after the admin's authentication in the VPN Connection Service on the Archer BE230 v1.2  and Arche…EPSS 2.8%8.5CVE-2026-22223Tp-link archer be230 firmware os command injection vulnerabilityAn OS Command Injection vulnerability in TP-Link Archer BE230 v1.2 and BE3600 v1 (vpn modules) allows adjacent authenticated attacker execute arbitra…EPSS 1.4%8.5CVE-2026-22226Tp-link archer be230 firmware os command injection vulnerabilityA command injection vulnerability may be exploited after the admin's authentication in the VPN server configuration module on TP-Link Archer BE230 v1…EPSS 2.5%8.5CVE-2026-22224Tp-link archer be230 firmware os command injection vulnerabilityA command injection vulnerability may be exploited after the admin's authentication in the cloud communication interface on the TP-Link Archer BE230 …EPSS 2.7%8.5CVE-2026-22227Tp-link archer be230 firmware os command injection vulnerabilityA command injection vulnerability may be exploited after the admin's authentication via the configuration backup restoration function of the TP-Link …EPSS 2.7%8.5CVE-2026-22221Tp-link archer be230 firmware os command injection vulnerabilityAn OS Command Injection vulnerability in TP-Link Archer BE230 v1.2(vpn modules) and BE3600 v1 allows adjacent authenticated attacker execute arbitrar…EPSS 1.4%8.5CVE-2026-22222Tp-link archer be230 firmware os command injection vulnerabilityAn OS Command Injection vulnerability in TP-Link Archer BE230 v1.2(web modules) allows adjacent authenticated attacker to execute arbitrary code. Suc…EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2026-22220), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.