CVE-2023-40798

8.8 highEPSS 0.9%

High (8.8) in tenda ac23 firmware. EPSS 0.9% chance of exploitation in the next 30 days.

In Tenda AC23 v16.03.07.45_cn, the formSetIPv6status and formGetWanParameter functions do not authenticate user input parameters, resulting in a post-authentication stack overflow vulnerability.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 61% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2023-08-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tenda:ac23_firmware

References

https://github.com/lst-oss/Vulnerability/tree/main/Tenda/AC23/formSetIPv6status-formGetWanParameter
https://github.com/lst-oss/Vulnerability/tree/main/Tenda/AC23/formSetIPv6status-formGetWanParameter

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