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CVE-2025-9526

Linksys E1700 Firmware buffer overflow

8.8 HIGHPublic exploitEPSS 1.42%
  1. Published27 Aug 2025

Description

A vulnerability has been found in Linksys E1700 1.0.0.4.003. Affected by this issue is the function setSysAdm of the file /goform/setSysAdm. Such manipulation of the argument rm_port leads to stack-based buffer overflow. The attack can be launched 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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Linksys E1700 Firmware1.0.0.4.003

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Frequently asked

Is CVE-2025-9526 being actively exploited?

CVE-2025-9526 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.42%.

How severe is CVE-2025-9526?

CVE-2025-9526 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.42% probability of exploitation.

Which products are affected by CVE-2025-9526?

Affected products include Linksys E1700 Firmware.

How do I fix CVE-2025-9526?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-9526 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.