Critical severity · published May 29, 2026
CVE-2026-49200
Acer Wave 7 router: Broken Access Control
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
The acer_cgi.log file in the device firmware is accessible without authentication via the web interface. This file contains cleartext login credentials (for web and Telnet), leading to unauthorized system access.
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)0.5% · higher than 44% 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-2026-49200
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49200
Vendor Advisory
https://community.acer.com/en/kb/articles/19673
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