Critical 9.9Published Oct 6, 2026

CVE-2026-105778Tenda AC5 Wifi setWifi stack-based overflow

Updated under an hour ago (2026-10-19 08:30 UTC)

Does this affect you?

It affects Tenda AC5. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.48%, higher than 40% of scored CVEs.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Tenda AC5

Exploited in the last 30 days

A vulnerability has been found in Tenda AC5 02.03.01.111_multi. Affected by this issue is some unknown functionality of the file /goform/setWifi of the component Wifi Handler. Such manipulation of the argument wifiPwd leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

CVSS: 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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): 0.48% (percentile 40)
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Oct 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tenda AC5 tenda:ac5_firmware	02.03.01.111_multi	CNA record

References

https://vuldb.com/vuln/413811vdb-entry, technical-description
https://vuldb.com/vuln/413811/ctisignature, permissions-required
https://vuldb.com/cve/CVE-2026-105778third-party-advisory
https://vuldb.com/submit/992587third-party-advisory
https://github.com/raisecnull/Tenda-AC5v3-BOF/blob/main/blog.mdexploit
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.