CVE-2025-9781
TOTOLINK A702R formFilter sub_4162DC buffer overflow
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
TOTOLINK A702R formFilter sub_4162DC buffer overflow
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
- Record
CVE-2025-9781- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R - CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R - CVSS 2.0
- 9.0
AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR - Weakness
- CWE-120, CWE-119
- Updated
- 2026-11-02
EUVDEUVD-2025-26345
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
- Record
EUVD-2025-26345- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-hrwv-wp54-9562
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function...
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
- Record
GHSA-hrwv-wp54-9562- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-119
- Updated
- 2026-11-02
NVD
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. This affects the function sub_4162DC of the file /boafrm/formFilter. Such manipulation of the argument ip6addr leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
- Record
CVE-2025-9781- CVSS 4.0
- 7.4 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 9.0 High
AV:N/AC:L/Au:S/C:C/I:C/A:C - Weakness
- CWE-119, CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-9781 is a high vulnerability (CVSS 8.7) in Totolink A702r, published September 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.70%, the 53rd percentile. No source names a fixed version.