Improper Authentication in Multiple TP-Link WiFi Repeaters
CVSS score
5.9
EPSS probability
—
Risk score
0.6
Published
15 h ago
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Impact on My Inventory
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
1
Source agreement
Tam uyum
Evidence confidence
%55
Short explanation
Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated local network attacker who captures network traffic may derive an alternative credential value.
Successful exploitation may allow an unauthenticated adjacent attacker to gain administrator access to the affected device and modify exposed configuration settings.
What should be done?
- Follow the CNA resolution reference
- Check the vendor support download page
Chain of evidence and sources
Birden fazla TP-Link Wi-Fi menzil genişleticide uygunsuz kimlik doğrulama zafiyeti bulunmaktadır.
Zafiyetin istismar edilmesi için yönetim girişinin HTTP kullanması ve saldırganın oturum anahtarını gözlemlemesi gerekir.
Show the technical text from the sources
Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate administrator login may be able to derive an alternative credential value that produces the same accepted authentication result and use it to authenticate to the device’s web-management interface with administrator privileges. Exploitation requires the management login to use HTTP and the attacker to observe the session key, dictionary, and login value associated with a legitimate administrator login. Successful exploitation may allow an unauthenticated adjacent attacker to gain administrator access to the affected device and modify exposed configuration settings.
CVSS vector: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE: CWE-287
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-109506 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | TP-Link Systems Inc. | RE190 v5 | View |
| 2 | TP-Link Systems Inc. | RE200 v5 | View |
| 3 | TP-Link Systems Inc. | RE205 v4 | View |
| 4 | TP-Link Systems Inc. | RE215 v1 | View |
| 5 | TP-Link Systems Inc. | RE220 v3 | View |
| 6 | TP-Link Systems Inc. | RE230 v2 | View |
| 7 | TP-Link Systems Inc. | RE300 v2 | View |
| 8 | TP-Link Systems Inc. | RE305 v4 | View |
| 9 | TP-Link Systems Inc. | RE330 v1 | View |
| 10 | TP-Link Systems Inc. | RE335 v1 | View |
| 11 | TP-Link Systems Inc. | RE365 v2 | View |
| 12 | TP-Link Systems Inc. | RE365 v3 | View |
| 13 | TP-Link Systems Inc. | RE750C v4 | View |
| 14 | TP-Link Systems Inc. | RE450 v4.8 | View |
| 15 | TP-Link Systems Inc. | RE550 v1 | View |
| 16 | TP-Link Systems Inc. | RE315 v1 | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 5.9 | CVSS V40 | MEDIUM | CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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 | NVD |
| 5.9 | CVSS V4_0 | MEDIUM | CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
4 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.
Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-109506 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-109506 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
CVSS Vector Radar Chart
5.9 / 10Vulnerability Scoring Details
CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NYama doğrulandı
Weakness Type (CWE & CAPEC)
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