CVE-2026-89052 Hardcoded AES encryption key in Archer C6
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-89052?
CVE-2026-89052 is a medium-severity vulnerability in TP-Link Systems Inc. Archer C6 V2, published on 21 Oct 2026.
Official description
A hardcoded cryptographic key management vulnerability exists in Archer C6 due to the use of a universal cryptographic key shared across devices. An attacker who obtains an encrypted configuration file or other protected credential data can recover plaintext credentials.
Successful exploitation may allow unauthorized disclosure of sensitive information, including administrative credentials.
Weakness: CWE-321
Which versions are affected by CVE-2026-89052?
How do I fix CVE-2026-89052?
No fix has been published for CVE-2026-89052 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-89052 being exploited?
There is no known exploitation of CVE-2026-89052 in the wild and no public exploit code.
Sources
Also known as GHSA-9cmp-4hhr-2px3.