What’s Vulnerable › Vulnerabilities

CVE-2026-5021: Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-03-29 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Tenda F453: 1.0.0.3

References

• https://github.com/Litengzheng/vul_db/blob/main/F453/vul_92/README.md
• https://vuldb.com/submit/778415
• https://vuldb.com/vuln/353906
• https://vuldb.com/vuln/353906/cti
• https://www.tenda.com.cn/

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