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TI-2023-04374 Aliases CVE-2023-4746GHSA-76xj-3v79-3jwj

TOTOLINK N200RE V5 Validity_check format string

Priority MEDIUM 44CWE-134Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
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-134 and the CVSS impact.

Summary

A vulnerability classified as critical has been found in TOTOLINK N200RE V5 9.3.5u.6437_B20230519. This affects the function Validity_check. The manipulation leads to format string. It is possible to initiate the attack remotely. The root-cause of the vulnerability is a format string issue. But the impact is to bypass the validation which leads to to OS command injection. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-238635.

Why it matters now

EPSS 0.03706 89th 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

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

Affected products

VendorProductAffected versionsFixed inStatusSource
TOTOLINKN200RE V59.3.5u.6437_B20230519—No fix listedCNA
  • N200RE V5 VendorTOTOLINK Affected 9.3.5u.6437_B20230519 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:n200re-v5_firmware:9.3.5u.6437_b20230519:*:*:*:*:*:*:*9.3.5u.6437_b20230519VulnerableTOTOLINK
cpe:2.3:h:totolink:n200re-v5:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:totolink:n200re-v5_firmware:9.3.5u.6437_b20230519:*:*:*:*:*:*:* Versions 9.3.5u.6437_b20230519 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:n200re-v5:-:*:*:*:*:*:*:* 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-2023-4746
  2. 2026-10-03 Alias added: GHSA-76xj-3v79-3jwj

References

Exploit 1

  • TI-2022-23812 A vulnerability in TOTOLINK N200RE_v5 firmware V9.3.5u.6139 allows unauthenticated… CVSS 3.1CRITICAL 9.8
  • TI-2024-00868 Totolink N200RE V5 cstecgi.cgi session expiration CVSS 3.1MEDIUM 4.3

Sources

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