A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9781)
A buffer overflow vulnerability exists in TOTOLINK A702R version 4.0.0-B20211108.1423 in the function sub_4162DC of /boafrm/formFilter. This vulnerability can be exploited remotely by manipulating the ip6addr argument. The exploit has been publicly disclosed. The vulnerability has a high severity with a CVSS score of 8.8.
AI Analysis
Technical Summary
CVE-2025-9781 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The issue is located in the function sub_4162DC within the /boafrm/formFilter file, where improper handling of the ip6addr argument allows remote attackers to cause a buffer overflow. The vulnerability has been publicly disclosed, and the CVSS v3.1 score is 8.8, indicating high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution or denial of service due to buffer overflow, impacting confidentiality, integrity, and availability of the affected device. The vulnerability is remotely exploitable without user interaction and requires low attack complexity with low privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict remote access to the affected device and monitor for exploit attempts.
A vulnerability has been found in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9781)
Description
A buffer overflow vulnerability exists in TOTOLINK A702R version 4.0.0-B20211108.1423 in the function sub_4162DC of /boafrm/formFilter. This vulnerability can be exploited remotely by manipulating the ip6addr argument. The exploit has been publicly disclosed. The vulnerability has a high severity with a CVSS score of 8.8.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-9781 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The issue is located in the function sub_4162DC within the /boafrm/formFilter file, where improper handling of the ip6addr argument allows remote attackers to cause a buffer overflow. The vulnerability has been publicly disclosed, and the CVSS v3.1 score is 8.8, indicating high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability can lead to remote code execution or denial of service due to buffer overflow, impacting confidentiality, integrity, and availability of the affected device. The vulnerability is remotely exploitable without user interaction and requires low attack complexity with low privileges.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict remote access to the affected device and monitor for exploit attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-hrwv-wp54-9562
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-9781"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab74f37f7a7c54106e138dc
Added to database: 09/26/2026, 04:51:03 UTC
Last enriched: 09/26/2026, 04:59:32 UTC
Last updated: 09/27/2026, 02:40:21 UTC
Views: 14
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