CVE-2025-8816

Name: CVE-2025-8816
Creator: NVD / NIST
Published: 2025-08-10T16:15:27.107+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.87%

Last modified Jun 17, 2026

CVE-2025-8816 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. Affected is the function setOpMode of the file /goform/setOpMode. EPSS estimates a 0.87% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. Affected is the function setOpMode of the file /goform/setOpMode. The manipulation of the argument ethConv leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

8.8/10

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

CVSS 4.0

7.4/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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

0.87%

54.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linksys	Re6250 Firmware	1.0.04.001
Linksys	Re6300 Firmware	1.2.07.001
Linksys	Re6350 Firmware	1.0.04.001
Linksys	Re7000 Firmware	1.1.05.003
Linksys	Re9000 Firmware	1.0.04.002
Linksys	Re6500 Firmware	1.0.013.001

References

https://github.com/wudipjq/my_vuln/blob/main/Linksys1/vuln_50/50.mdExploit, Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys1/vuln_50/50.md#pocExploit, Third Party Advisory
https://vuldb.com/?ctiid.319350Permissions Required, VDB Entry
https://vuldb.com/?id.319350Third Party Advisory, VDB Entry
https://vuldb.com/?submit.626680Third Party Advisory, VDB Entry
https://www.linksys.com/Product
https://github.com/wudipjq/my_vuln/blob/main/Linksys1/vuln_50/50.mdExploit, Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys1/vuln_50/50.md#pocExploit, Third Party Advisory

Timeline

Published: Aug 10, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-8816?

How severe is CVE-2025-8816?

CVE-2025-8816 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.

How do I fix CVE-2025-8816?

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-2025-8816?

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

Scan your code now

Source: NVD / NIST