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TI-2024-06796 Aliases CVE-2024-7335GHSA-c627-r4px-c33f

TOTOLINK EX200 getSaveConfig buffer overflow

Priority HIGH 73CWE-120Published · 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
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

A vulnerability classified as critical has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 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 0.01157 67th 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
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
TOTOLINKEX2004.0.3c.7646_B20201211—No fix listedCNA
  • EX200 VendorTOTOLINK Affected 4.0.3c.7646_B20201211 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:*:*:*:*:*:*:*4.0.3c.7646_b20201211VulnerableTOTOLINK
cpe:2.3:h:totolink:ex200:-:*:*:*:*:*:*:*not specified by NVDRunning onTOTOLINK
  • cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:*:*:*:*:*:*:* Versions 4.0.3c.7646_b20201211 Vulnerable ·TOTOLINK
  • cpe:2.3:h:totolink:ex200:-:*:*:*:*:*:*:* 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-2024-7335
  2. 2026-10-03 Alias added: GHSA-c627-r4px-c33f

References

Exploit 1

  • TI-2024-20942 TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a hardcoded password for root at /etc/shadow.sample. CVSS 3.1CRITICAL 9.8
  • TI-2024-20939 TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution… CVSS 3.1CRITICAL 9.8
  • TI-2024-20946 TOTOLINK EX200 V4.0.3c.7646_B20201211 allows attackers to bypass login through the Form_Login function. CVSS 3.1HIGH 8.8
  • TI-2024-20940 TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution… CVSS 3.1HIGH 8.8
  • TI-2024-20941 TOTOLINK EX200 V4.0.3c.7646_B20201211 was discovered to contain a remote code execution… CVSS 3.1HIGH 8.8
  • TI-2024-06797 TOTOLINK EX200 cstecgi.cgi loginauth buffer overflow CVSS 4.0HIGH 8.7
See all 18 →

Sources

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