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TI-2026-83670 Aliases CVE-2026-120283GHSA-q5j7-qf5p-p6hv

Stack-based overflow in Linksys E8450 portal.cgi via strcpy

Priority MEDIUM 50CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

Linksys E8450 version 1.2.00.360516 is affected. Manipulating the hidden_timezone argument processed by strcpy in /www/cgi-bin/portal.cgi causes a stack-based buffer overflow (CWE-121). An unauthenticated remote attacker can trigger the flaw over the network.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00584 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinksysE84501.2.00.360516—No fix listedCNA
  • E8450 VendorLinksys Affected 1.2.00.360516 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:linksys:e8450_firmware:*:*:*:*:*:*:*:*——Linksys
  • cpe:2.3:o:linksys:e8450_firmware:*:*:*:*:*:*:*:* Versions — — ·Linksys

Remediation

The sources list no fixed version for Linksys E8450.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-120283
  2. 2026-11-02 Alias added: GHSA-q5j7-qf5p-p6hv
  3. 2026-11-02 CISA SSVC decision points changed

References

Other 1

  • TI-2025-24206 Linksys Routers E/WAG/WAP/WES/WET/WRT-Series CVSS 4.0CRITICAL 10.0
  • TI-2017-12715 OS command injection in Linksys WVBR0 CVSS 3.0CRITICAL 9.8
  • TI-2026-70977 Stack-based buffer overflow in Linksys E1700 Mac Filter CVSS 4.0CRITICAL 10.0
  • TI-2026-22199 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22198 Missing neutralization in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
  • TI-2026-22197 Missing authentication in Linksys MR9600, Linksys MX4200 CVSS 3.1CRITICAL 9.8
See all 253 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences