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_ho…
Vulnerability class: Buffer Overflow
EPSS: 0.076 (92.0th 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-272571 | TOTOLINK A3100R getSaveConfig buffer overflow (vdb-entry, technical-description)
- VDB-272571 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
- Submit #377542 | TOTOLINK A3100R V4.1.2cu.5050_B20200504 Buffer Overflow (third-party-advisory)
- github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3100R/getSaveConfig.md (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.