CVE-2026-8619Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600
- 7.1HighCVSS base score
- 0.87%Exploitation in 30 daysEPSS · top 41% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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 the web management interface and HTTP-dependent functionality temporarily unavailable.
Timeline
ID reserved
By TPLink
- 3 months later
· 3 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| TPLinkCNA (assigner) | 4.0 | High7.1 | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| NVDNVD · Analyzed | 4.0 | High7.1 | CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
- EPSS (exploitation in 30 days)
- 0.87% · top 41% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
TP-Link Systems Inc. · TL-MR100 v3.2
- affected < TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n
TP-Link Systems Inc. · TL-MR150 v.3.2
- affected < TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n
TP-Link Systems Inc. · TL-MR6400 v8.0
- affected < TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n
TP-Link Systems Inc · Archer MR600 v2
- affected < Archer MR600(EU)_V2_1.10.0 Build 260618
References
References5
- https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware (opens in a new tab)patch
- https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware (opens in a new tab)patch
- https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware (opens in a new tab)patch
- https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware (opens in a new tab)patch
- https://www.tp-link.com/us/support/faq/5253/ (opens in a new tab)vendor-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-63168 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-8619)Record last updated .