# CVE-2026-120283: Linksys E8450 portal.cgi strcpy stack-based overflow

Status: published. Published: 2026-11-02. Updated: 2026-11-02.

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

No remediation reported in collected sources

## Affected products and versions

- Linksys / E8450: 1.2.00.360516 (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 10 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P; source: CNA: VulDB

- CVSS 3.1: 10 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 3.0: 10 (critical); CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R; source: CNA: VulDB

- CVSS 2.0: 10 (critical); AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-121, CWE-119

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://vuldb.com/vuln/429627 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/429627/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-120283 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1014924 (CNA: VulDB; third-party-advisory)

- https://www.linksys.com/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-120283; retrieved 2026-11-02; source updated 2026-11-02

Revision: e24b7c5719e0a2fe91598a242a54a224ba4c2cd0bd196f8cccef505710b0aa9d

Canonical: https://y2.dev/cve/CVE-2026-120283