CVE-2026-15469

Mesh node impersonation via shared private key

Published Aug 24, 2026 · Updated Aug 24, 2026

Hard-coded key use in TP-Link Deco XE75 V3, XE5300 V3.6, and WE10800 V3.6 firmware allows attackers to impersonate trusted mesh nodes. The mesh protocol authenticates nodes with the same embedded RSA-512 private key instead of a device-specific credential. Exploitation requires access to the firmware image and local network, after which an unauthenticated adjacent attacker can bypass node authentication and make unauthorized configuration changes.

CVSS severity7.7
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded key use in TP-Link Deco XE75 V3, XE5300 V3.6, and WE10800 V3.6 firmware allows attackers to impersonate trusted mesh nodes. The mesh protocol authenticates nodes with the same embedded RSA-512 private key instead of a device-specific credential. Exploitation requires access to the firmware image and local network, after which an unauthenticated adjacent attacker can bypass node authentication and make unauthorized configuration changes.

The record

CVE
CVE-2026-15469
Published
Aug 24, 2026
Updated
Aug 24, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-321, T1552.001
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.7TP-LinkCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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