CVE-2026-0640
criticalA weakness has been identified in Tenda AC23 16.03.07.52.
Vendor / product: Tenda — ac23 firmware
A weakness has been identified in Tenda AC23 16.03.07.52. This affects the function sscanf of the file /goform/PowerSaveSet. Executing a manipulation of the argument Time can lead to buffer overflow. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.
CVSS
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-01-06 16:15
Modified: 2026-10-26 21:10
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
tenda / ac23_firmware 16.03.07.52
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buff... cna@vuldb.com
- https://github.com/xyh4ck/iot_poc/blob/main/Tenda%20AC23_Buffer_Overflow/Tenda%20AC23_Buff... cna@vuldb.com
- https://vuldb.com/?ctiid.339683 cna@vuldb.com
- https://vuldb.com/?id.339683 cna@vuldb.com
- https://vuldb.com/?submit.731772 cna@vuldb.com
- https://www.tenda.com.cn/ cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗