CVE-2025-5623

Name: CVE-2025-5623
Creator: NVD / NIST
Published: 2025-06-05T00:15:24.133+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 12.13%

Last modified Jun 17, 2026

CVE-2025-5623 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. EPSS estimates a 12.13% chance of exploitation in the next 30 days.

Description

A vulnerability was found in D-Link DIR-816 1.10CNB05. It has been classified as critical. This affects the function qosClassifier of the file /goform/qosClassifier. The manipulation of the argument dip_address/sip_address leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

12.13%

95.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Dlink	Dir-816 Firmware	1.10cnb05

References

https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_51/51.mdExploit, Third Party Advisory
https://vuldb.com/?ctiid.311109Permissions Required
https://vuldb.com/?id.311109Third Party Advisory, VDB Entry
https://vuldb.com/?submit.589224Third Party Advisory, VDB Entry
https://www.dlink.com/Product
https://github.com/wudipjq/my_vuln/blob/main/D-Link5/vuln_51/51.mdExploit, Third Party Advisory

Timeline

Published: Jun 5, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-5623?

How severe is CVE-2025-5623?

CVE-2025-5623 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 12.13% probability of exploitation in the next 30 days.

How do I fix CVE-2025-5623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-5623?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST