CVE-2024-42543
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host...
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
- Record
CVE-2024-42543- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
- Record
CVE-2024-42543- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2024-39662
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
- Record
EUVD-2024-39662- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-82fp-rv69-j7ww
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host...
TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.
- Record
GHSA-82fp-rv69-j7ww- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-42543 is a critical vulnerability (CVSS 9.8) in Totolink A3700r Firmware, published August 12, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 52nd percentile. No source names a fixed version.