Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4 (CVE-2026-18330) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-18330

Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4

Answer in brief

CVE-2026-18330 records a Unknown severity vulnerability in Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4. The current sources do not mark it as known exploited. The current feed maps TP-Link Systems Inc./Archer AX55 v4 (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 Sep 3, 2026Updated Sep 3, 2026Source checked Sep 4, 2026First seen by HOL Sep 3, 2026Material review Sep 3, 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./Archer AX55 v4 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
TP-Link Systems Inc./Archer AX55 v4generic	>=0 <1.2.1 Build 20260527	1.2.1 Build 20260527

Recommended response

Check inventory. Check lockfiles and deployed manifests for TP-Link Systems Inc./Archer AX55 v4.
Review the reported fix. Update TP-Link Systems Inc./Archer AX55 v4 to 1.2.1 Build 20260527 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 3, 2026

Sources and claim methodology

Upstream source description

A hard-coded cryptographic key vulnerability exists in the web module of TP-Link Archer AX55 v4. A LAN attacker who captures an HTTP login session may use the known shared RSA private key to decrypt the administrator password; the weakened AES session key further reduces the effort required to compromise session confidentiality. Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.

Quoted source text, attributed separately from HOL analysis.