Is CVE-2026-8619 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-8619 being exploited in the wild.

How severe is CVE-2026-8619?

High severity, with a CVSS score of 7.5, published 20 August 2026.

Which products and versions are affected?

TP-Link Archer MR600 v2; TP-Link Tl-Mr100 v3.2; TP-Link Tl-Mr150 v3.2; TP-Link TL-MR6400 v8.0.

Is there a fix for CVE-2026-8619?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-8619 attacked?

It is attacked from the adjacent network or over the network, in a network appliance.

Am I affected by CVE-2026-8619?

Check whether you run TP-Link Archer MR600, TP-Link Archer Mr600 Firmware, TP-Link Tl-Mr100 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-8619: TP-Link 4G/LTE router denial of service via malformed HTTP request

CVE-2026-8619 · Severity: high · CVSS 7.5 · Published 2026-08-20

TP-Link manufactures a family of 4G/LTE routers widely used in homes and small offices to provide wireless connectivity. A remote attacker on the local network can send a specially crafted HTTP request to crash the router's web management service, temporarily disabling access to the device's configuration interface and any HTTP-dependent functionality. The router must be restarted to restore service.

Technologies: TP-Link Archer MR600, TP-Link TL-MR6400. Vendors: TP-Link.

Quick answers

Is CVE-2026-8619 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-8619 being exploited in the wild.
How severe is CVE-2026-8619?: High severity, with a CVSS score of 7.5, published 20 August 2026.
Which products and versions are affected?: TP-Link Archer MR600 v2; TP-Link Tl-Mr100 v3.2; TP-Link Tl-Mr150 v3.2; TP-Link TL-MR6400 v8.0.
Is there a fix for CVE-2026-8619?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-8619 attacked?: It is attacked from the adjacent network or over the network, in a network appliance.
Am I affected by CVE-2026-8619?: Check whether you run TP-Link Archer MR600, TP-Link Archer Mr600 Firmware, TP-Link Tl-Mr100 or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is a NULL pointer dereference in the HTTP service component of TP-Link 4G/LTE routers, caused by improper handling of exceptional or malformed request conditions. The attack vector is network-adjacent (attacker must be on the same local network segment as the target router). No authentication is required; an unauthenticated attacker can send a specially crafted HTTP request to trigger the crash. Successful exploitation causes the HTTP daemon to crash, rendering the web management interface and any HTTP-dependent features temporarily unavailable until the service is manually restarted or the device reboots. Patch availability for these specific firmware versions has not been disclosed in the advisory.

Affected products

TP-Link TL-MR100 v3.2
TP-Link TL-MR150 v3.2
TP-Link TL-MR6400 v8.0
TP-Link Archer MR600 v2

Timeline

2026-08-20: disclosed

References

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