Buffer overflow in Totolink Ex200
CVE-2024-7336
A vulnerability classified as critical was found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-273259. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
EPSS: 0.013 (66.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Totolink Ex200 — versions 4.0.3c.7646_B20201211
- Totolink Ex200_firmware — versions 4.0.3c.7646_b20201211
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (Permissions Required, technical-description, VDB Entry, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Technical Description, Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2024-7336?
- CVE-2024-7336 is a high-severity vulnerability in Totolink Ex200, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-08-01.
- How severe is CVE-2024-7336?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-7336 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.