PatchTheCVECVE-2026-8619: An unauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-
CVE-2026-8619 is a high-severity flaw (CVSS 7.5) affecting tl-mr100 firmware, archer mr600 firmware, tl-mr150 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
An unauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions that may lead to a NULL pointer dereference. A remote attacker on an adjacent network can send a specially crated HTTP request to trigger a crash of the HTTP service process. Successful exploitation may cause the HTTP service to crash, making
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.9% (top 41%) |
| CISA exploited list | No |
| Weakness | CWE-476 |
| Published | 2026-08-20 |
| Last modified | 2026-09-03 |
Last updated 2026-09-03 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-8619?
tl-mr100 firmware: upgrade to 1.3.0; archer mr600 firmware: upgrade to 1.10.0; tl-mr150 firmware: upgrade to 1.3.0. Exact commands for each OS are on this page.
Is CVE-2026-8619 being exploited?
CVE-2026-8619 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-8619 affect?
CVE-2026-8619 affects tl-mr100 firmware, archer mr600 firmware, tl-mr150 firmware. Severity is high (CVSS 7.5). An unauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions that may lead to a NULL pointer derefe
How urgent is CVE-2026-8619?
Priority 46/100. High severity; Remotely exploitable, no login, no user action