CVE-2026-4253

low-risk
Published 2026-03-16

A security flaw has been discovered in Tenda AC8 16.03.50.11. This affects the function route_set_user_policy_rule of the file /cgi-bin/UploadCfg of the component Web Interface. The manipulation of the argument wans.policy.list1 results in os command injection. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Do I need to act?

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0.38% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Tenda

References (5)

Exploit https://github.com/digitalandrew/tenda_ac8_v5/blob/main/poc_cmdi_config_upload.p...
Permissions Required https://vuldb.com/?ctiid.351211
Third Party Advisory https://vuldb.com/?id.351211
Exploit https://vuldb.com/?submit.771771
Product https://www.tenda.com.cn/
25
/ 100
low-risk
Severity 19/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 5/34 · Minimal