A vulnerability was determined in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9783)
A buffer overflow vulnerability exists in TOTOLINK A702R version 4.0.0-B20211108.1423, specifically in the function sub_418030 of /boafrm/formParentControl. This vulnerability can be exploited remotely by manipulating the submit-url argument. The vulnerability has a high severity score of 8.8 and has been publicly disclosed with exploit code available, though no known exploits are currently observed in the wild. No patch or remediation information is provided.
AI Analysis
Technical Summary
CVE-2025-9783 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The flaw resides in the function sub_418030 within the /boafrm/formParentControl file, where improper handling of the submit-url argument allows an attacker to overflow a buffer remotely. The vulnerability has been publicly disclosed, and exploit code is available, increasing the risk of exploitation. The CVSS v3.1 base 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 with low attack complexity and no user interaction required. The attacker requires low privileges (PR:L) on the device to launch the attack.
Mitigation Recommendations
No official patch or remediation is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the affected device and monitor for unusual activity related to the submit-url parameter.
A vulnerability was determined in TOTOLINK A702R 4.0.0-B20211108.1423. (CVE-2025-9783)
Description
A buffer overflow vulnerability exists in TOTOLINK A702R version 4.0.0-B20211108.1423, specifically in the function sub_418030 of /boafrm/formParentControl. This vulnerability can be exploited remotely by manipulating the submit-url argument. The vulnerability has a high severity score of 8.8 and has been publicly disclosed with exploit code available, though no known exploits are currently observed in the wild. No patch or remediation information is provided.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-9783 describes a buffer overflow vulnerability in TOTOLINK A702R firmware version 4.0.0-B20211108.1423. The flaw resides in the function sub_418030 within the /boafrm/formParentControl file, where improper handling of the submit-url argument allows an attacker to overflow a buffer remotely. The vulnerability has been publicly disclosed, and exploit code is available, increasing the risk of exploitation. The CVSS v3.1 base 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 with low attack complexity and no user interaction required. The attacker requires low privileges (PR:L) on the device to launch the attack.
Mitigation Recommendations
No official patch or remediation is currently documented. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the affected device and monitor for unusual activity related to the submit-url parameter.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xj6h-q5c9-g8r3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2025-9783"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab74f37f7a7c54106e138da
Added to database: 09/26/2026, 04:51:03 UTC
Last enriched: 09/26/2026, 04:59:19 UTC
Last updated: 09/27/2026, 02:40:38 UTC
Views: 14
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