CVE-2026-5021

CWE-119 — Buffer OverflowCWE-121 — Stack-based Buffer OverflowCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.4HIGH
EPSS
0.1%
top 76.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Tenda F453Tenda F453 Firmware
Timeline
PublishedMar 29

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.

CVSS vector

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

Affected Packages2 packages

▶CVEListV5tenda/f4531.0.0.3
▶NVDtenda/f453_firmware1.0.0.3

🔴Vulnerability Details

2
CVEList
Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow↗2026-03-29
▶
GHSA
GHSA-pcxg-4cp2-qqj4: A flaw has been found in Tenda F453 1↗2026-03-29
▶