CVE-2026-22220: tp-link systems inc. archer be230 v1.2 Improper Input Validation
Vulnerability summary
CVE-2026-22220 is a medium (CVSS 6.8) Improper Input Validation vulnerability in tp-link systems inc. archer be230 v1.2. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.3% of scored vulnerabilities.
Timeline
- 03-02-2026PublishedVulnerability first disclosed.
- 04-02-2026Last modifiedVulnerability information updated.
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 metrics
3 scores · 2 sources · 2 versions- NVDNIST6.8MediumCVSS: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:X/V:X/RE:X/U:X
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
+0.01 pp
From 0.23% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Tp-link1 product
- archer_be230_firmware< 1.2.4
Tp-link systems inc.1 product
- archer be230 v1.2< 1.2.4 Build 20251218 rel.70420
2 vendors · 2 products
References
4 links- www.tp-link.com/us/support/faq/4941/Vendor Advisory