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TI-2026-01039 Aliases CVE-2026-1327GHSA-vcr6-rc5m-f5w2

Totolink NR1800X POST Request cstecgi.cgi setTracerouteCfg command injection

Priority MEDIUM 57CWE-74Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. This issue affects the function setTracerouteCfg of the file /cgi-bin/cstecgi.cgi of the component POST Request Handler. Such manipulation of the argument command leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.02874 86th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
TOTOLINKNR1800X9.1.0u.6279_B20210910—No fix listedCNA
  • NR1800X VendorTOTOLINK Affected 9.1.0u.6279_B20210910 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6279_b20210910:*:*:*:*:*:*:*9.1.0u.6279_b20210910VulnerableTOTOLINK
cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:totolink:nr1800x_firmware:9.1.0u.6279_b20210910:*:*:*:*:*:*:* Versions 9.1.0u.6279_b20210910 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:nr1800x:-:*:*:*:*:*:*:* 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-2026-1327
  2. 2026-10-03 Alias added: GHSA-vcr6-rc5m-f5w2

References

Exploit 1

Other 1

  • TI-2023-06604 Totolink NR1800X cstecgi.cgi loginAuth stack-based overflow CVSS 3.1CRITICAL 9.8
  • TI-2026-01040 Totolink NR1800X POST Request cstecgi.cgi setWizardCfg buffer overflow CVSS 4.0HIGH 8.7
  • TI-2025-28867 TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack… CVSS 3.1HIGH 8.8
  • TI-2025-28866 TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack… CVSS 3.1HIGH 8.8
  • TI-2025-28865 TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack… CVSS 3.1HIGH 8.8
  • TI-2025-28864 TOTOLINK NR1800X V9.1.0u.6681_B20230703 was discovered to contain an authenticated stack… CVSS 3.1HIGH 8.8
See all 26 →

Sources

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