Buffer overflow in Totolink A3100r
CVE-2024-7157
A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been classified as critical. This affects 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 initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-272571. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
EPSS: 0.074 (93.8th 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 A3100r — versions 4.1.2cu.5050_B20200504
- Totolink A3100r_firmware — versions 4.1.2cu.5050_b20200504
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cna@vuldb.com (technical-description, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, Third Party Advisory)
- cna@vuldb.com (Third Party Advisory, third-party-advisory)
- cna@vuldb.com (Exploit, exploit)
Frequently asked questions
- What is CVE-2024-7157?
- CVE-2024-7157 is a high-severity vulnerability in Totolink A3100r, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.8/10. Published 2024-07-28.
- How severe is CVE-2024-7157?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-7157 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.