CVE-2025-9528: A vulnerability was determined in Linksys E1700 1.0.0.4.003

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MEDIUM 4.7MITIGATE

CVE-2025-9528 is a medium-severity flaw (CVSS 4.7) affecting e1700 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function systemCommand of the file /goform/systemCommand. Executing manipulation of the argument command can lead to os command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

EPSS top 1%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	54.5% (top 1%)
CISA exploited list	No
Weakness	CWE-77, CWE-78
Published	2025-08-27
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: linksys

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

Am I affected?

Timeline

2025-08-27 14:15 UTCPublished CVE record published
2026-06-17 10:09 UTCUpdated Record last modified

linksys e1700 firmware MITIGATE

Affected: 1.0.0.4.003

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0.4.003

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-2025-9528?

e1700 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-9528 being exploited?

CVE-2025-9528 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-2025-9528 affect?

CVE-2025-9528 affects e1700 firmware. Severity is medium (CVSS 4.7). A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function systemCommand of the file /goform/systemCommand. Executing manipulation of the argument command can lead to os command injection. The attac

How urgent is CVE-2025-9528?

Priority 46/100. EPSS top 1%: very likely to be exploited; Public exploit reference

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References

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