CVE-2025-9527

Name: CVE-2025-9527
Creator: NVD / NIST
Published: 2025-08-27T14:15:55.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2025-9527 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. A vulnerability was found in Linksys E1700 1.0.0.4.003. This affects the function QoSSetup of the file /goform/QoSSetup. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

A vulnerability was found in Linksys E1700 1.0.0.4.003. This affects the function QoSSetup of the file /goform/QoSSetup. Performing manipulation of the argument ack_policy results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could 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

1.32%

67.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linksys	E1700 Firmware	1.0.0.4.003

References

https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_60/60.mdExploit, Third Party Advisory
https://github.com/wudipjq/my_vuln/blob/main/Linksys2/vuln_60/60.md#pocExploit, Third Party Advisory
https://vuldb.com/?ctiid.321544Permissions Required, VDB Entry
https://vuldb.com/?id.321544Third Party Advisory, VDB Entry
https://vuldb.com/?submit.634826Third Party Advisory, VDB Entry
https://www.linksys.com/Product

Timeline

Published: Aug 27, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-9527?

How severe is CVE-2025-9527?

CVE-2025-9527 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2025-9527?

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-2025-9527?

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

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Source: NVD / NIST