How severe is CVE-2024-53621?

CVE-2024-53621 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-53621 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-53621?

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-2024-53621 have an EU (EUVD) identifier?

Yes. CVE-2024-53621 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54717.

When was CVE-2024-53621 published?

CVE-2024-53621 was published on 2025-06-30 and last updated on 2026-06-17.

CVE-2024-53621

CVE-2024-53621 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-54717
Weakness: CWE-121
Published: 2025-06-30
Last modified: 2026-06-17

Description

A buffer overflow in the formSetCfm() function of Tenda AC1206 1200M 11ac US_AC1206V1.0RTL_V15.03.06.23_multi_TD01 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Frequently asked questions

What is CVE-2024-53621?: A buffer overflow in the formSetCfm() function of Tenda AC1206 1200M 11ac US_AC1206V1.0RTL_V15.03.06.23_multi_TD01 allows attackers to cause a Denial of Service (DoS) via a crafted POST request.
How severe is CVE-2024-53621?: CVE-2024-53621 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-53621 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-53621?: 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-2024-53621 have an EU (EUVD) identifier?: Yes. CVE-2024-53621 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-54717.
When was CVE-2024-53621 published?: CVE-2024-53621 was published on 2025-06-30 and last updated on 2026-06-17.

References

Other CWE-121 (Stack-based Buffer Overflow) vulnerabilities

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