CVE-2026-3841
8.8 · HIGHOverview
CVE-2026-3841 is a high-severity vulnerability affecting tp-link tl-mr6400_firmware. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
A command injection vulnerability has been identified in the Telnet command-line interface (CLI) of TP-Link TL-MR6400 v5.3. This issue is caused by insufficient sanitization of data processed during specific CLI operations. An authenticated attacker with elevated privileges may be able to execute arbitrary system commands. Successful exploitation may lead to full device compromise, including potential loss of confidentiality, integrity, and availability.
Remediation
Check the references section for vendor advisories and patches from tp-link. Update tl-mr6400_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 |
|---|---|---|---|
| tp-link | tl-mr6400_firmware | >= 0, < 1.9.0 | Affected |
Frequently Asked Questions
What is CVE-2026-3841?
CVE-2026-3841 is a high-severity vulnerability affecting tp-link tl-mr6400_firmware. It was published on March 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-3841?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-3841?
Check the references section for vendor advisories and patches from tp-link. Update tl-mr6400_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-2026-3841?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-3841 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.
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