How severe is CVE-2026-5605?

CVE-2026-5605 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-5605 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5605?

CVE-2026-5605 affects Tenda Ch22 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5605?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-5605 have an EU (EUVD) identifier?

Yes. CVE-2026-5605 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19140.

When was CVE-2026-5605 published?

CVE-2026-5605 was published on 2026-04-06 and last updated on 2026-06-17.

CVE-2026-5605

CVE-2026-5605 is a high-severity vulnerability in Tenda Ch22 Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19140
Weakness: CWE-119
Affected product: Tenda Ch22 Firmware
Published: 2026-04-06
Last modified: 2026-06-17

Description

A weakness has been identified in Tenda CH22 1.0.0.1. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.

Frequently asked questions

What is CVE-2026-5605?: A weakness has been identified in Tenda CH22 1.0.0.1. This affects the function formWrlExtraSet of the file /goform/WrlExtraSet. Executing a manipulation of the argument GO can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks.
How severe is CVE-2026-5605?: CVE-2026-5605 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-5605 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5605?: CVE-2026-5605 affects Tenda Ch22 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5605?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-5605 have an EU (EUVD) identifier?: Yes. CVE-2026-5605 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19140.
When was CVE-2026-5605 published?: CVE-2026-5605 was published on 2026-04-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ch22_firmware:1.0.0.1:*:*:*:*:*:*:*

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