CVE-2025-12211
criticalA security flaw has been discovered in Tenda O3 1.0.0.10(2478).
Vendor / product: Tenda — o3 firmware1.0.0.10\(2478\)
A security flaw has been discovered in Tenda O3 1.0.0.10(2478). Affected by this issue is the function SetValue/GetValue of the file /goform/setDmzInfo. The manipulation of the argument dmzIP results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may 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: 2025-10-27 04:15
Modified: 2026-10-08 11:10
NVD status: Modified
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 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 / o3_firmware1.0.0.10\(2478\) all versions
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/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md cna@vuldb.com
- https://vuldb.com/?ctiid.329881 cna@vuldb.com
- https://vuldb.com/?id.329881 cna@vuldb.com
- https://vuldb.com/?submit.673265 cna@vuldb.com
- https://www.tenda.com.cn/ cna@vuldb.com
- https://github.com/noahze01/IoT-vulnerable/blob/main/Tenda/O3v2.0/setDmzInfo.md 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗