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CVE-2026-15469

HighPublished

Hard-coded Mesh Group Private Key in TP-Link Deco XE75, XE5300, and WE10800

Published: Aug 24, 2026
Updated: Aug 24, 2026
Assigning CNA: TPLink
Evidence observed: Aug 25, 2026

Primary CVSS

7.7/ 10High

nvd · CVSS 4.0

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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 probability estimate

0.3%

Low · next 30 days

Percentile: 18.1%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The use of hard-coded cryptographic key vulnerability has been identified in the mesh functionality of Deco XE75 v3, XE5300 v3.6 and WE10800 v3.6. A shared RSA-512 mesh group private key is present in the affected firmware and is used by the mesh protocol for node authentication. An attacker who obtains the firmware image and has local network access may be able to authenticate as a mesh node without possessing a device-specific credential. Successful exploitation may allow an unauthenticated adjacent attacker to impersonate a trusted mesh node and bypass mesh node authentication, which may permit unauthorized changes to device or mesh configuration, affecting confidentiality, integrity and availability.

Sources

CVE-2026-15469Research
Advisory and technical analysis of CVE-2026-15469, a hard-coded RSA-512 mesh group private key in TP-Link Deco routers, including root cause, impact, and PoC methodology for defensive research.

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