Use of Hard-coded Cryptographic Key in Acer Wave 7 Router - #VU133366
Published: June 4, 2026
Vulnerability identifier: #VU133366
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-321
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to modify encrypted backups and inject a persistent backdoor.
The vulnerability exists due to the use of a hardcoded cryptographic key in upload.cgi when processing device backups. A remote attacker can decrypt, modify, and re-encrypt system backups to modify encrypted backups and inject a persistent backdoor.
Affected software
Acer Wave 7 Router
Remediation
Cybersecurity Help is currently unaware of any official solution to
address this vulnerability. The target fix is planned for deployment by
vendor by the end of June 2026.