CVE-2020-35715

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-12-26 · updated 2026-06-17
Weakness: CWE-78

Description

Belkin LINKSYS RE6500 devices before 1.0.012.001 allow remote authenticated users to execute arbitrary commands via shell metacharacters in a filename to the upload_settings.cgi page.

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

Get alerted when CVE-2020-35715 or the next vulnerability affects your stack