A hard-coded cryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5. The same RSA-1024 private key is stored within firmware configuration files and reused across devices. An attacker who obtains the private key and captures an HTTP Web UI login session may use the key to decrypt the administrator password.  Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.
History

Tue, 27 Oct 2026 18:30:00 +0000


Tue, 27 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
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. A hard-coded cryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5. The same RSA-1024 private key is stored within firmware configuration files and reused across devices. An attacker who obtains the private key and captures an HTTP Web UI login session may use the key to decrypt the administrator password.  Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.
Title Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4 Hardcoded Shared RSA-1024 Private Key in Web Login in TP-Link RE305 and Archer C7
References

Fri, 04 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 04 Sep 2026 15:45:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link archer Ax55 V4
Vendors & Products Tp-link
Tp-link archer Ax55 V4

Thu, 03 Sep 2026 22:30:00 +0000

Type Values Removed Values Added
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.
Title Hardcoded Shared RSA-1024 Private Key in TP-Link Archer AX55 v4
Weaknesses CWE-321
References
Metrics cvssV4_0

{'score': 6.1, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published: 2026-09-03T22:24:45.430Z

Updated: 2026-10-27T17:39:53.630Z

Reserved: 2026-07-29T20:03:53.524Z

Link: CVE-2026-18330

cve-icon Vulnrichment

Updated: 2026-09-04T17:39:53.006Z

cve-icon NVD

Status : Deferred

Published: 2026-09-03T23:17:19.400

Modified: 2026-10-27T18:17:37.207

Link: CVE-2026-18330

cve-icon Redhat

No data.