CVE-2026-4903

HIGH

Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption

Title source: cna
STIX 2.1

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.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-353654 | Tenda AC5 POST Request QuickIndex formQuickIndex memory corruption
https://vuldb.com/?id.353654
Signature, Permissions Required signature permissions-required
VDB-353654 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/?ctiid.353654
Third Party Advisory third-party-advisory
Submit #777380 | Tenda AC5 AC5 V1.0 V15.03.06.47 Buffer Overflow
https://vuldb.com/?submit.777380
Product product
https://www.tenda.com.cn/

Scores

CVSS v3 8.8
EPSS 0.0092
EPSS Percentile 55.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121 CWE-787
Status published
Products (2)
Tenda/AC5 15.03.06.47
tenda/ac5_firmware 15.03.06.47
Published Mar 26, 2026
Tracked Since Mar 27, 2026