A vulnerability was detected in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9779)
A buffer overflow vulnerability exists in the TOTOLINK A702R firmware version 4.0.0-B20211108.1423, specifically in the function sub_4162DC within /boafrm/formFilter. The vulnerability is triggered by manipulation of the ip6addr argument and can be exploited remotely. Public exploit code is available. The vulnerability has a high severity with a CVSS score of 8.8.
AI Analysis
Technical Summary
CVE-2025-9779 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The flaw resides in the function sub_4162DC of the /boafrm/formFilter component, where improper handling of the ip6addr argument allows an attacker to overflow a buffer remotely. Exploit code for this vulnerability is publicly available, increasing the risk of exploitation. The CVSS v3.1 base score is 8.8, reflecting 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 availability of public exploit code increases the likelihood of attacks.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict remote access to the affected device and monitor for exploit attempts.
A vulnerability was detected in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9779)
Description
A buffer overflow vulnerability exists in the TOTOLINK A702R firmware version 4.0.0-B20211108.1423, specifically in the function sub_4162DC within /boafrm/formFilter. The vulnerability is triggered by manipulation of the ip6addr argument and can be exploited remotely. Public exploit code is available. 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-2025-9779 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The flaw resides in the function sub_4162DC of the /boafrm/formFilter component, where improper handling of the ip6addr argument allows an attacker to overflow a buffer remotely. Exploit code for this vulnerability is publicly available, increasing the risk of exploitation. The CVSS v3.1 base score is 8.8, reflecting 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 availability of public exploit code increases the likelihood of attacks.
Mitigation Recommendations
No patch or official fix information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict remote access to the affected device and monitor for exploit attempts.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-ph9m-5932-3v52
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-9779"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab74f37f7a7c54106e138db
Added to database: 09/26/2026, 04:51:03 UTC
Last enriched: 09/26/2026, 04:59:23 UTC
Last updated: 09/27/2026, 02:40:29 UTC
Views: 14
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