How severe is CVE-2021-32424?

CVE-2021-32424 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-32424 being actively exploited?

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

What products are affected by CVE-2021-32424?

CVE-2021-32424 affects Trendnet Tw100-s4w1ca Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32424?

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.

When was CVE-2021-32424 published?

CVE-2021-32424 was published on 2021-06-17 and last updated on 2026-06-17.

CVE-2021-32424

CVE-2021-32424 is a high-severity vulnerability in Trendnet Tw100-s4w1ca 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Trendnet Tw100-s4w1ca Firmware
Published: 2021-06-17
Last modified: 2026-06-17

Description

In TrendNet TW100-S4W1CA 2.3.32, due to a lack of proper session controls, a threat actor could make unauthorized changes to an affected router via a specially crafted web page. If an authenticated user were to interact with a malicious web page it could allow for a complete takeover of the router.

Frequently asked questions

What is CVE-2021-32424?: In TrendNet TW100-S4W1CA 2.3.32, due to a lack of proper session controls, a threat actor could make unauthorized changes to an affected router via a specially crafted web page. If an authenticated user were to interact with a malicious web page it could allow for a complete takeover of the router.
How severe is CVE-2021-32424?: CVE-2021-32424 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-32424 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32424?: CVE-2021-32424 affects Trendnet Tw100-s4w1ca Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32424?: 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.
When was CVE-2021-32424 published?: CVE-2021-32424 was published on 2021-06-17 and last updated on 2026-06-17.

References

https://github.com/Galapag0s/Trendnet_TW100-S4W1CA/blob/main/writeup_CSRF.txt

Affected products (1)

cpe:2.3:o:trendnet:tw100-s4w1ca_firmware:2.3.32:*:*:*:*:*:*:*

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