How severe is CVE-2025-4355?

CVE-2025-4355 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-2025-4355 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-4355?

CVE-2025-4355 affects Dlink Dap-1520 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-4355?

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-2025-4355 have an EU (EUVD) identifier?

Yes. CVE-2025-4355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13602.

When was CVE-2025-4355 published?

CVE-2025-4355 was published on 2025-05-06 and last updated on 2026-06-17.

CVE-2025-4355

CVE-2025-4355 is a high-severity vulnerability in Dlink Dap-1520 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 8.7
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13602
Weakness: CWE-787
Affected product: Dlink Dap-1520 Firmware
Published: 2025-05-06
Last modified: 2026-06-17

Description

A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been classified as critical. This affects the function set_ws_action of the file /dws/api/. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2025-4355?: A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been classified as critical. This affects the function set_ws_action of the file /dws/api/. The manipulation leads to heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
How severe is CVE-2025-4355?: CVE-2025-4355 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-2025-4355 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-4355?: CVE-2025-4355 affects Dlink Dap-1520 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-4355?: 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-2025-4355 have an EU (EUVD) identifier?: Yes. CVE-2025-4355 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13602.
When was CVE-2025-4355 published?: CVE-2025-4355 was published on 2025-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dap-1520_firmware:1.10b04:beta02:*:*:*:*:*:*

More vulnerabilities in Dlink Dap-1520 Firmware

CVE-2020-15892 — Critical (CVSS 9.8): An issue was discovered in apply.cgi on D-Link DAP-1520 devices before 1.10b04Beta02. Whenever a user performs a login…
CVE-2025-4356 — High (CVSS 8.8): A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02. It has been declared as critical. This vulnerability…
CVE-2025-4354 — High (CVSS 8.8): A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02 and classified as critical. Affected by this issue is the…
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