Hard-coded Mesh Group Private Key in TP-Link Deco XE75, XE5300, and WE10800 (CVE-2026-15469) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-15469

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

Answer in brief

CVE-2026-15469 records a Unknown severity vulnerability in Hard-coded Mesh Group Private Key in TP-Link Deco XE75, XE5300, and WE10800. The current sources do not mark it as known exploited. The current feed maps TP-Link Systems Inc./Deco XE75 v3 / XE5300 v3.6/ WE10800 v3.6 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 24, 2026Updated Aug 24, 2026Source checked Aug 24, 2026First seen by HOL Aug 24, 2026Material review Aug 24, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps TP-Link Systems Inc./Deco XE75 v3 / XE5300 v3.6/ WE10800 v3.6 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
TP-Link Systems Inc./Deco XE75 v3 / XE5300 v3.6/ WE10800 v3.6generic	>=0 <1.5.0 Build 20260603	1.5.0 Build 20260603

Recommended response

Check inventory. Check lockfiles and deployed manifests for TP-Link Systems Inc./Deco XE75 v3 / XE5300 v3.6/ WE10800 v3.6.
Review the reported fix. Update TP-Link Systems Inc./Deco XE75 v3 / XE5300 v3.6/ WE10800 v3.6 to 1.5.0 Build 20260603 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 24, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.