Read the docs

SYN Flood or FIN Flood attack in ECos 1 and other versions embedded devices results in…

Priority MEDIUM 47CWE-287Published · Updated

Key facts

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

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

SYN Flood or FIN Flood attack in ECos 1 and other versions embedded devices results in web Authentication Bypass. "eCos Embedded Web Servers used by Multiple Routers and Home devices, while sending SYN Flood or FIN Flood packets fails to validate and handle the packets and does not ask for any sign of authentication resulting in Authentication Bypass. An attacker can take complete advantage of this bug and take over the device remotely or locally. The bug has been successfully tested and reproduced in some versions of SOHO Routers manufactured by TOTOLINK, GREATEK and others."

Why it matters now

EPSS 0.02919 87th percentileScored 2026-11-07
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:ecos:embedded_web_servers:*:*:*:*:*:*:*:*up to 1.3.1VulnerableEcos
cpe:2.3:h:greatek:soho:-:*:*:*:*:*:*:*not specified by NVDRunning on—
cpe:2.3:h:totolink:soho:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:ecos:embedded_web_servers:*:*:*:*:*:*:*:* Versions up to 1.3.1 Vulnerable ·Ecos
  • cpe:2.3:h:greatek:soho:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·—
  • cpe:2.3:h:totolink:soho:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TOTOLINK

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000020
  2. 2026-10-03 Alias added: GHSA-76v3-hrq5-hh93

References

Sources