What’s Vulnerable › Vulnerabilities

CVE-2020-35716

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-12-26 · updated 2026-06-17

Description

Belkin LINKSYS RE6500 devices before 1.0.012.001 allow remote attackers to cause a persistent denial of service (segmentation fault) via a long /goform/langSwitch langSelectionOnly parameter.

Affected products

• Linksys Re6500 Firmware: before 1.0.012.001 — fixed in 1.0.012.001

How to fix

Upgrade to a fixed version: Linksys Re6500 Firmware 1.0.012.001. Check the vendor advisory for mitigations.

References

• https://bugcrowd.com/disclosures/72d7246b-f77f-4f7f-9bd1-fdc35663cc92/linksys-re6500-unauthenticated-rce-working-across-multiple-fw-versions
• https://downloads.linksys.com/support/assets/releasenotes/ExternalReleaseNotes_RE6500_1.0.012.001.txt
• https://resolverblog.blogspot.com/2020/07/linksys-re6500-unauthenticated-rce-full.html
• https://bugcrowd.com/disclosures/72d7246b-f77f-4f7f-9bd1-fdc35663cc92/linksys-re6500-unauthenticated-rce-working-across-multiple-fw-versions
• https://downloads.linksys.com/support/assets/releasenotes/ExternalReleaseNotes_RE6500_1.0.012.001.txt
• https://resolverblog.blogspot.com/2020/07/linksys-re6500-unauthenticated-rce-full.html

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