Linksys E8450 portal.cgi strcpy stack-based overflow

Summary

A vulnerability was identified in Linksys E8450 1.2.00.360516. Affected is the function strcpy of the file /www/cgi-bin/portal.cgi. Such manipulation of the argument hidden_timezone leads to stack-based buffer overflow. The attack can be executed remotely. The vendor was contacted early about this disclosure but did not respond in any way.

Remediation

1. Inventory every Linksys E8450 deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Advisoryhttps://vuldb.com/cve/CVE-2026-120283
• Advisoryhttps://vuldb.com/submit/1014924
• Referencehttps://vuldb.com/vuln/429627
• Referencehttps://vuldb.com/vuln/429627/cti
• Referencehttps://www.linksys.com/