CVE-2026-18330Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4
Updated under an hour ago ()
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It affects TP-Link Systems Inc. Archer AX55 v4. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.1 MEDIUM (v4.0, CNA)CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-321
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Deferred
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. Archer AX55 v4 tp_link_systems:archer_ax55_v4 (from the name) | before 1.2.1 Build 20260527 | CNA record |
References
- https://www.tp-link.com/us/support/download/archer-ax55/v4/#Firmwarepatch
- https://www.tp-link.com/us/support/faq/5279/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.