High 8.8Published Feb 8, 2026

CVE-2026-2181Tenda RX3 openSchedWifi stack-based overflow

Updated under an hour ago (Oct 25, 2026, 11:23 PM ET)

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It affects Tenda RX3. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Tenda RX3

Exploited in the last 30 days

A security flaw has been discovered in Tenda RX3 16.03.13.11. Affected by this vulnerability is an unknown functionality of the file /goform/openSchedWifi. Performing a manipulation of the argument schedStartTime/schedEndTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Feb 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tenda RX3 tenda:rx3_firmware	16.03.13.11	CNA record
tenda rx3_firmware tenda:rx3_firmware	16.03.13.11	NVD

References

https://vuldb.com/?id.344884vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.344884signature, permissions-required, vdb-entry
https://vuldb.com/?submit.749710third-party-advisory, vdb-entry
https://github.com/LX-66-LX/cve-new/issues/5exploit, issue-tracking
https://www.tenda.com.cn/product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.