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TI-2023-14211 Aliases CVE-2023-30305

An issue discovered in Linksys E5600 routers allows attackers to hijack TCP sessions…

Priority LOW 39Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

An issue discovered in Linksys E5600 routers allows attackers to hijack TCP sessions which could lead to a denial of service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00421 36th 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:linksys:e5600_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableLinksys
cpe:2.3:h:linksys:e5600:-:*:*:*:*:*:*:*not specified by NVDRunning onLinksys
  • cpe:2.3:o:linksys:e5600_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Linksys
  • cpe:2.3:h:linksys:e5600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linksys

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-30305

References

Advisory 1

  • TI-2025-28791 Linksys E5600 v1.1.0.26 was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2025-28790 Linksys E5600 v1.1.0.26 was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2025-28789 Linksys E5600 v1.1.0.26 was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2025-28788 Linksys E5600 v1.1.0.26 was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2025-28787 Linksys E5600 v1.1.0.26 was discovered to contain a command injection vulnerability in… CVSS 3.1CRITICAL 9.8
  • TI-2025-21022 linksys E5600 V1.1.0.26 is vulnerable to command injection in the function ddnsStatus. CVSS 3.1CRITICAL 9.8
See all 17 →

Sources

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