CVE-2025-4355: A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02

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HIGH 8.8MITIGATE

CVE-2025-4355 is a high-severity flaw (CVSS 8.8) affecting dap-1520 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-119, CWE-122, CWE-787
Published	2025-05-06
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: dlink

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-06 13:15 UTCPublished CVE record published
2026-06-17 09:33 UTCUpdated Record last modified

dlink dap-1520 firmware MITIGATE

Affected: 1.10b04 beta02

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.10b04

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-4355?

dap-1520 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-4355 being exploited?

CVE-2025-4355 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-4355 affect?

CVE-2025-4355 affects dap-1520 firmware. Severity is high (CVSS 8.8). 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

How urgent is CVE-2025-4355?

Priority 53/100. High severity; Public exploit reference

Related CVEs

CVE-2025-4356 HIGH 8.8 MITIGATE A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02
CVE-2025-4354 HIGH 8.8 MITIGATE A vulnerability was found in Tenda DAP-1520 1.10B04_BETA02 and classified as critical
CVE-2024-36831 MEDIUM 5.3 MITIGATE A NULL pointer dereference in the plugins_call_handle_uri_clean function of D-Link DAP-1520 REVA_FIRMWARE_1.10

References

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