How severe is CVE-2026-22220?

CVE-2026-22220 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-22220 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22220?

CVE-2026-22220 affects Tp-link Archer Be230 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22220?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-22220 have an EU (EUVD) identifier?

Yes. CVE-2026-22220 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5216.

When was CVE-2026-22220 published?

CVE-2026-22220 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-22220

CVE-2026-22220 is a medium-severity vulnerability in Tp-link Archer Be230 Firmware with a CVSS 3.x base score of 4.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.5)
CVSS v4: 6.8
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5216
Weakness: CWE-20
Affected product: Tp-link Archer Be230 Firmware
Published: 2026-02-03
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22220?: 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.
How severe is CVE-2026-22220?: CVE-2026-22220 has a CVSS 3.x base score of 4.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-22220 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22220?: CVE-2026-22220 affects Tp-link Archer Be230 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22220?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-22220 have an EU (EUVD) identifier?: Yes. CVE-2026-22220 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5216.
When was CVE-2026-22220 published?: CVE-2026-22220 was published on 2026-02-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tp-link:archer_be230_firmware:*:*:*:*:*:*:*:*

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