CVE-2024-43683
Status: ModifiedHigh (8.7)—
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Microchip TimeProvider 4100 allows XSS Through HTTP Headers.This issue affects TimeProvider 4100: from 1.0.
CVSS
- Version: 4.0
- Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H/E:X/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:U/V:C/RE:M/U:Amber
- Base score: 8.7
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.23%
- Percentile among all scored CVEs: 12
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution60 % - Primary impact
T1566.002Spearphishing Linkinitial access55 %
Inferred by deterministic rules from the CVSS vector and CWE. Indicative only.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (1)
CWEs
- CWE-601
- CWE-601
References
Raw JSON (NVD)
Show
{
"id": "CVE-2024-43683",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-43683",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2024-10-04T21:24:56.897223Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.1,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.8
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "USER",
"baseScore": 8.7,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "CONCENTRATED",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H/E:X/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:U/V:C/RE:M/U:Amber",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "AMBER",
"userInteraction": "PASSIVE",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "MODERATE",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"affectedData": [
{
"vendor": "Microchip",
"product": "TimeProvider 4100",
"versions": [
{
"status": "affected",
"version": "1.0",
"lessThan": "2.4.7",
"versionType": "firmware"
}
],
"defaultStatus": "unknown"
}
]
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"affectedData": [
{
"cpes": [
"cpe:2.3:o:microchip:timeprovider_4100_firmware:*:*:*:*:*:*:*:*"
],
"vendor": "microchip",
"product": "timeprovider_4100_firmware",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.4.7",
"versionType": "custom"
}
],
"defaultStatus": "unknown"
}
]
}
],
"published": "2024-10-04T20:15:06.513",
"references": [
{
"url": "https://www.gruppotim.it/it/footer/red-team.html",
"tags": [
"Third Party Advisory"
],
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"
},
{
"url": "https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/timeprovider-4100-grandmaster-improper-verification-of-host-header",
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5",
"description": [
{
"lang": "en",
"value": "CWE-601"
}
]
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-601"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Microchip TimeProvider 4100 allows XSS Through HTTP Headers.This issue affects TimeProvider 4100: from 1.0."
},
{
"lang": "es",
"value": "La vulnerabilidad de redirección de URL a un sitio no confiable ('Redirección abierta') en Microchip TimeProvider 4100 permite XSS a través de encabezados HTTP. Este problema afecta a TimeProvider 4100: desde 1.0."
}
],
"lastModified": "2026-06-17T07:51:31.707",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microchip:timeprovider_4100_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A6C4C166-7F0D-427E-87C6-D8AEF680CA42",
"versionEndExcluding": "2.4.7",
"versionStartIncluding": "1.0"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:microchip:timeprovider_4100:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "8D36DAD3-0804-42B0-A47F-6895177560EE"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"
}