CVE-2019-19825
9.8 · CRITICALOverview
CVE-2019-19825 is a critical-severity vulnerability affecting totolink a3002ru_firmware. It was published on January 27, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
On certain TOTOLINK Realtek SDK based routers, the CAPTCHA text can be retrieved via an {"topicurl":"setting/getSanvas"} POST to the boafrm/formLogin URI, leading to a CAPTCHA bypass. (Also, the CAPTCHA text is not needed once the attacker has determined valid credentials. The attacker can perform router actions via HTTP requests with Basic Authentication.) This affects A3002RU through 2.0.0, A702R through 2.1.3, N301RT through 2.1.6, N302R through 3.4.0, N300RT through 3.4.0, N200RE through 4.0.0, N150RT through 3.4.0, and N100RE through 3.4.0.
Remediation
Check the references section for vendor advisories and patches from totolink. Update a3002ru_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| totolink | a3002ru_firmware | 0 | Affected |
| totolink | a702r_firmware | 0 | Affected |
| totolink | n301rt_firmware | 0 | Affected |
| totolink | n302r_firmware | 0 | Affected |
| totolink | n300rt_firmware | 0 | Affected |
| totolink | n200re_firmware | 0 | Affected |
| totolink | n150rt_firmware | 0 | Affected |
| totolink | n100re_firmware | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-19825?
CVE-2019-19825 is a critical-severity vulnerability affecting totolink a3002ru_firmware. It was published on January 27, 2020 and has a CVSS 3.1 base score of 9.8 (CRITICAL).
How severe is CVE-2019-19825?
This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-19825?
Check the references section for vendor advisories and patches from totolink. Update a3002ru_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-19825?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-19825 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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