Critical severity · published May 29, 2026
CVE-2026-49201
Acer Wave 7 router: Hardcoded Cryptographic Key
9.8
CVSS
0.3%
EPSS
No
On KEV
Description
The upload.cgi binary, responsible for processing device backups, contains a hardcoded AES encryption key. This allows an attacker to decrypt, modify, and re-encrypt system backups, facilitating persistent backdoor injection.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
W7
Wave 7 router · Acer
T7c_GBL_1.01.000055 · source: vendor
W7
Wave 7 Firmware · Acer
through t7c_gbl_1.01.000055 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49201
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49201
Vendor Advisory
https://community.acer.com/en/kb/articles/19673
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