High severity · published Feb 8, 2026
CVE-2026-2148
Tenda AC21 Web Management DownloadFlash information disclosure
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
A security vulnerability has been detected in Tenda AC21 16.03.08.16. Affected is an unknown function of the file /cgi-bin/DownloadFlash of the component Web Management Interface. The manipulation leads to information disclosure. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
AC21 · Tenda
16.03.08.16 · source: vendor
AF
Ac21 Firmware · Tenda
16.03.08.16 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2148
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2148
Exploit
https://github.com/master-abc/cve/issues/27
Permissions Required
https://vuldb.com/?ctiid.344850
Third Party Advisory
https://vuldb.com/?id.344850
Third Party Advisory
https://vuldb.com/?submit.747557
Product
https://www.tenda.com.cn/
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