CVE-2021-35325
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu...
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).
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
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).
- Record
CVE-2021-35325- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).
- Record
CVE-2021-35325- Updated
- 2026-11-02
EUVDEUVD-2021-21968 No score
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).
- Record
EUVD-2021-21968- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h46f-g79w-66f7 No score
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu...
A stack overflow in the checkLoginUser function of TOTOLINK A720R A720R_Firmware v4.1.5cu.470_B20200911 allows attackers to cause a denial of service (DOS).
- Record
GHSA-h46f-g79w-66f7- Weakness
- CWE-787
- 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-2021-35325 is a high vulnerability (CVSS 7.5) in Totolink A720r Firmware, published August 5, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 13.3%, the 96th percentile. No source names a fixed version.