High 8.8Published Mar 27, 2026

CVE-2026-4961Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow

Updated under an hour ago (Oct 27, 2026, 11:30 AM ET)

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It affects Tenda AC6. 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 AC6

Exploited in the last 30 days

A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

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: Mar 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Tenda AC6 tenda:ac6_firmware	15.03.05.16	CNA record
tenda ac6_firmware tenda:ac6_firmware	15.03.05.16	NVD

References

References

https://vuldb.com/?id.353838	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.353838	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.777617	third-party-advisory, vdb-entry
https://lavender-bicycle-a5a.notion.site/Tenda-AC6-QuickIndex-32053a41781f80758e27fa4259ec80cf?source=copy_link	exploit, third-party-advisory
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.