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Vulnerabilities

Vulnerability · CVE-2025-8820

A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801.

Published Aug 10, 2025 · catalog updated Aug 12, 2025 · Linksys RE9000

Last checked Oct 29, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-8820. EPSS is 1.05%. Act only if a listed version of Linksys RE9000 is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.05%
Remediation
Vendor / distro source
Affected products
vendor Linksys RE9000 20250801

A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function wirelessBasic of the file /goform/wirelessBasic. The manipulation of the argument submit_SSID1 leads to stack-based buffer overflow. The attack can be initiated 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linksys RE9000 2025080120250801

How to fix CVE-2025-8820

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-8820. EPSS is 1.05%. Act only if a listed version of Linksys RE9000 is installed.

Which versions are affected?

Compare what you have installed with Linksys RE9000 20250801 20250801. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.05%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 10, 2025 · EUVD

    Detected

    A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function wirelessBasic of the file /goform/wirelessBasic. The manipulation of the argument submit_SSID1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was cont

  2. Aug 12, 2025 · EUVD

    Updated

    A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function wirelessBasic of the file /goform/wirelessBasic. The manipulation of the argument submit_SSID1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was cont

Sources

  • CVE.orgVulnerability recordCVE-2025-8820

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-8820

    30-day exploitation probability 1.05%

    first.org
  • EUVDVulnerability recordEUVD-2025-24102

    A vulnerability was determined in Linksys RE6250, RE6300, RE6350, RE6500, RE7000 and RE9000 up to 20250801. This vulnerability affects the function wirelessBasic of the file /goform/wirelessBasic. The manipulation of the argument submit_SSID1 leads to stack-based buffer overflow.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 29, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026