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TI-2023-06604 Aliases CVE-2023-7220GHSA-p9pw-8h32-73j5

Totolink NR1800X cstecgi.cgi loginAuth stack-based overflow

Priority HIGH 75CWE-121Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-249854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01499 74th 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-2023-7220
  2. 2026-10-03 Alias added: GHSA-p9pw-8h32-73j5

References

Exploit 1

  • 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
  • TI-2025-37761 A stack buffer overflow vulnerability exists in the ToToLink LR1200GB… CVSS 3.1MEDIUM 6.5
See all 26 →

Sources

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