# TP-Link TL-MR6400 vulnerabilities Source: https://junglewise.ai/threats/technologies/tl-mr6400 Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/tl-mr6400.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 6 vulnerabilities in TP-Link TL-MR6400: 0 in the last 7 days and 6 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-76653, was published on 10 September 2026. Nothing was published in the last eight weeks. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 6 - All time: 6 (0 critical, 0 exploited in the wild) ## About TP-Link TL-MR6400 Firmware for the TL-MR6400 300 Mbps Wireless N 4G LTE Router. ## Latest TP-Link TL-MR6400 vulnerabilities - [CVE-2026-76653: TP-Link Archer MR600 and TL-MR6400 authentication bypass in VPN configuration](https://junglewise.ai/threats/cve-2026-76653-tp-link-archer-mr600-and-tl-mr6400-authentication-bypass-in-vpn) (info, published 10 Sep 2026) - [CVE-2026-76652: TP-Link Archer MR600 and TL-MR6400 directory traversal in file upload](https://junglewise.ai/threats/cve-2026-76652-tp-link-archer-mr600-and-tl-mr6400-directory-traversal-in-file) (info, CVSS 0, published 10 Sep 2026) - [CVE-2026-17252: TP-Link TL-MR6400 v7 stack-based buffer overflow in login handler](https://junglewise.ai/threats/cve-2026-17252-tp-link-tl-mr6400-v7-stack-based-buffer-overflow-in-login-handler) (info, CVSS 6.5, published 21 Aug 2026) - [CVE-2026-17251: TP-Link TL-MR6400 NULL pointer dereference in HTTP parsing](https://junglewise.ai/threats/cve-2026-17251-tp-link-tl-mr6400-null-pointer-dereference-in-http-parsing) (info, CVSS 5.3, published 21 Aug 2026) - [CVE-2026-17250: TP-Link TL-MR6400 stack buffer overflow in firmware update](https://junglewise.ai/threats/cve-2026-17250-tp-link-tl-mr6400-stack-buffer-overflow-in-firmware-update) (info, published 21 Aug 2026) - [CVE-2026-8619: TP-Link 4G/LTE router denial of service via malformed HTTP request](https://junglewise.ai/threats/cve-2026-8619-tp-link-4g-lte-router-denial-of-service-via-malformed-http-request) (high, CVSS 7.5, published 20 Aug 2026) ## Most severe TP-Link TL-MR6400 vulnerabilities - [CVE-2026-8619: TP-Link 4G/LTE router denial of service via malformed HTTP request](https://junglewise.ai/threats/cve-2026-8619-tp-link-4g-lte-router-denial-of-service-via-malformed-http-request) (high, CVSS 7.5, published 20 Aug 2026) - [CVE-2026-17252: TP-Link TL-MR6400 v7 stack-based buffer overflow in login handler](https://junglewise.ai/threats/cve-2026-17252-tp-link-tl-mr6400-v7-stack-based-buffer-overflow-in-login-handler) (info, CVSS 6.5, published 21 Aug 2026) - [CVE-2026-17251: TP-Link TL-MR6400 NULL pointer dereference in HTTP parsing](https://junglewise.ai/threats/cve-2026-17251-tp-link-tl-mr6400-null-pointer-dereference-in-http-parsing) (info, CVSS 5.3, published 21 Aug 2026) - [CVE-2026-76652: TP-Link Archer MR600 and TL-MR6400 directory traversal in file upload](https://junglewise.ai/threats/cve-2026-76652-tp-link-archer-mr600-and-tl-mr6400-directory-traversal-in-file) (info, CVSS 0, published 10 Sep 2026) - [CVE-2026-76653: TP-Link Archer MR600 and TL-MR6400 authentication bypass in VPN configuration](https://junglewise.ai/threats/cve-2026-76653-tp-link-archer-mr600-and-tl-mr6400-authentication-bypass-in-vpn) (info, published 10 Sep 2026) - [CVE-2026-17250: TP-Link TL-MR6400 stack buffer overflow in firmware update](https://junglewise.ai/threats/cve-2026-17250-tp-link-tl-mr6400-stack-buffer-overflow-in-firmware-update) (info, published 21 Aug 2026) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 4 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 2 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other TP-Link technologies - [TP-Link Tapo C520WS](https://junglewise.ai/threats/technologies/tapo-c520ws): 13 vulnerabilities - [TP-Link TL-WR841N](https://junglewise.ai/threats/technologies/tl-wr841n): 10 vulnerabilities - [TP-Link Tapo C200](https://junglewise.ai/threats/technologies/tapo-c200): 9 vulnerabilities - [TP-Link Archer AX53](https://junglewise.ai/threats/technologies/archer-ax53): 8 vulnerabilities - [TP-Link Archer Ax53 Firmware](https://junglewise.ai/threats/technologies/archer-ax53-firmware): 8 vulnerabilities - [TP-Link Multiple Routers](https://junglewise.ai/threats/technologies/multiple-routers): 6 vulnerabilities - [TP-Link Tapo C520WS firmware](https://junglewise.ai/threats/technologies/tapo-c520ws-firmware): 6 vulnerabilities - [TP-Link Archer BE230](https://junglewise.ai/threats/technologies/archer-be230): 5 vulnerabilities - [TP-Link Archer Be230 Firmware](https://junglewise.ai/threats/technologies/archer-be230-firmware): 5 vulnerabilities - [TP-Link Archer MR600](https://junglewise.ai/threats/technologies/archer-mr600): 5 vulnerabilities - [TP-Link Tapo C120](https://junglewise.ai/threats/technologies/tapo-c120): 5 vulnerabilities - [TP-Link Archer BE3600](https://junglewise.ai/threats/technologies/archer-be3600): 4 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "TP-Link TL-MR6400 vulnerabilities", https://junglewise.ai/threats/technologies/tl-mr6400, 12 November 2026.