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OS command injection in Linksys E5350 via apply.cgi

Priority MEDIUM 47CWE-77Published · 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-77.

Summary

Linksys E5350 from version 1.0.00.037 is affected by OS command injection (CWE-78). The ping_ip and traceroute_ip arguments are not neutralized before the system function in /wizard/apply.cgi runs them. An unauthenticated remote attacker can execute operating system commands without user interaction. A public exploit has been published.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

A vulnerability was detected in Linksys E5350 1.0.00.037. This affects the function system of the file /wizard/apply.cgi. Performing a manipulation of the argument ping_ip/traceroute_ip results in os command injection. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

EPSS 0.02381 83rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinksysE53501.0.00.037—No fix listedCNA
  • E5350 VendorLinksys Affected 1.0.00.037 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:h:linksys:e5350:*:*:*:*:*:*:*:*——Linksys
  • cpe:2.3:h:linksys:e5350:*:*:*:*:*:*:*:* Versions — — ·Linksys

Remediation

The sources list no fixed version for Linksys E5350.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Timeline

  1. 2026-11-04 Threatist record created from CVE-2026-121932
  2. 2026-11-04 Alias added: GHSA-39mv-338q-hv4m

References

  • 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