CVE-2026-5021

HIGH

Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow

Title source: cna

Description

A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file /goform/PPTPUserSetting of the component httpd. This manipulation of the argument delno causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-353906 | Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow

https://vuldb.com/vuln/353906

Exploit exploit

https://github.com/Litengzheng/vul_db/blob/main/F453/vul_92/README.md

View Exploit ZIP pw:eip

Signature, Permissions Required signature permissions-required

VDB-353906 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/353906/cti

Third Party Advisory third-party-advisory

Submit #778415 | Tenda F453 v1.0.0.3 Stack-based Buffer Overflow

https://vuldb.com/submit/778415

Product product

https://www.tenda.com.cn/

Scores

CVSS v3 8.8

EPSS 0.0063

EPSS Percentile 45.4%

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/F453 1.0.0.3

tenda/f453_firmware 1.0.0.3

Published Mar 29, 2026

Tracked Since Mar 29, 2026