Signal is active with 4 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD 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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
NONE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
2 versions affected across 2 products
| Date | Total | Labels |
|---|
| 2026-03-27 | 1 | General1 |
| 2026-03-29 | 4 | Disclosure2General2 |
CVE-2026-5021 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… https://www.cve.org/CVERecord?id=CVE-2026-5021
Post summary
This brief message announces a newly discovered flaw in Tenda F453 firmware, noting the affected function but providing no further technical details, exploitation status, or mitigation information.
⚡ New CVE Alert: CVE-2026-5021 📊 Severity: 8.8 🚨 Risk Level: High 🧩 Affects: Multiple / Unspecified Products Reference: https://nvd.nist.gov/vuln/detail/CVE-2026-5021 #CVE-2026-5021 #CVE #High #CyberSecurity #InfoSec https://t.co/ZBr60kq0ow
Post summary
The tweet merely announces the existence of CVE-2026-5021 with a high severity score, without providing PoC, exploit, mitigation, or technical details.
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-5021 - Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow Intel Report: https://ift.tt/uFViv2R
Post summary
The tweet announces a new stack‑based overflow vulnerability (CVE‑2026‑5021) in Tenda F453’s httpd PPTPUserSetting, providing only the basic technical details without evidence of exploitation or remediation.
[CVE-2026-5021: HIGH] #CyberSecurityAlert: Vulnerability found in Tenda F453 1.0.0.3 allows remote attackers to execute a stack-based buffer overflow through manipulation of the argument delno. Take precaution...#cve,CVE-2026-5021,#cybersecurity https://cvefind.com/CVE-2026-5021
Post summary
A high‑severity stack‑based buffer overflow (CVE-2026-5021) was announced for Tenda F453 1.0.0.3, triggered via the "delno" argument. No exploits, patches, or active exploitation claims are provided.
There is a new vulnerability with elevated criticality in Tenda F453 (CVE-2026-5021) https://vuldb.com/?id.353906
Post summary
A new vulnerability (CVE-2026-5021) with elevated criticality is announced for the Tenda F453 router, but the post provides no technical details, PoC, exploitation evidence, or patch information.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| HW | tenda | f453 | - | - | - |
| OS | tenda | f453_firmware | 1.0.0.3 | - | - |