CVE-2026-4903
Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption
- State
- Published
- Severity
- 8.7 High
- Published
- Mar 26, 2026
- Updated
- Mar 27, 2026
- Reserved
- Mar 26, 2026
Description
A flaw has been found in Tenda AC5 15.03.06.47. This vulnerability affects the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. This manipulation of the argument PPPOEPassword causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published and may be used.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 8.8 High | 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 | VulDB |
| 3.0 | 8.8 High | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R | VulDB |
| 2.0 | 9.0 High | AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
AC5Tenda |
|
References
- VDB-353654 | Tenda AC5 POST Request QuickIndex formQuickIndex memory corruptionvdb-entrytechnical-description
- VDB-353654 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #777380 | Tenda AC5 AC5 V1.0 V15.03.06.47 Buffer Overflowthird-party-advisory
- https://lavender-bicycle-a5a.notion.site/Tenda_AC5_QuickIndex_PPPOEPassword-32053a41781f808dae98f99c99bcb21c?source=copy_linkexploit
- https://www.tenda.com.cn/product
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