CVE-2020-24558
Status: ModifiedHigh (7.1)—
A vulnerability in an Trend Micro Apex One, Worry-Free Business Security 10.0 SP1 and Worry-Free Business Security Services dll may allow an attacker to manipulate it to cause an out-of-bounds read that crashes multiple processes in the product. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Base score: 7.1
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.63%
- Percentile among all scored CVEs: 49
- 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).
Affected technologies (3)
CWEs
- CWE-125
References
- https://success.trendmicro.com/solution/000263632
- https://success.trendmicro.com/solution/000267260
- https://www.zerodayinitiative.com/advisories/ZDI-20-1095/
- https://success.trendmicro.com/solution/000263632
- https://success.trendmicro.com/solution/000267260
- https://www.zerodayinitiative.com/advisories/ZDI-20-1095/
Raw JSON (NVD)
Show
{
"id": "CVE-2020-24558",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 3.6,
"accessVector": "LOCAL",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "LOW",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 4.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 3.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.1,
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.2,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "security@trendmicro.com",
"affectedData": [
{
"vendor": "Trend Micro",
"product": "Trend Micro Apex One",
"versions": [
{
"status": "affected",
"version": "2009 (on premise), SaaS"
}
]
},
{
"vendor": "Trend Micro",
"product": "Trend Micro Worry-Free Business Security",
"versions": [
{
"status": "affected",
"version": "10.0 SP1, Services (SaaS)"
}
]
}
]
}
],
"published": "2020-09-01T19:15:11.933",
"references": [
{
"url": "https://success.trendmicro.com/solution/000263632",
"tags": [
"Product",
"Vendor Advisory"
],
"source": "security@trendmicro.com"
},
{
"url": "https://success.trendmicro.com/solution/000267260",
"tags": [
"Vendor Advisory"
],
"source": "security@trendmicro.com"
},
{
"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1095/",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "security@trendmicro.com"
},
{
"url": "https://success.trendmicro.com/solution/000263632",
"tags": [
"Product",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://success.trendmicro.com/solution/000267260",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.zerodayinitiative.com/advisories/ZDI-20-1095/",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-125"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in an Trend Micro Apex One, Worry-Free Business Security 10.0 SP1 and Worry-Free Business Security Services dll may allow an attacker to manipulate it to cause an out-of-bounds read that crashes multiple processes in the product. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability."
},
{
"lang": "es",
"value": "Una vulnerabilidad en una dll de Trend Micro Apex One, Worry-Free Business Security 10.0 SP1 y Worry-Free Business Security Services dll, puede permitir a un atacante manipularla para causar una lectura fuera de límites que bloquee varios procesos en el producto. Un atacante debe primero obtener la capacidad de ejecutar código poco privilegiado en el sistema de objetivo para explotar esta vulnerabilidad"
}
],
"lastModified": "2026-06-17T03:05:45.617",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:trendmicro:apex_one:2019:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AF019D2D-C426-4D2D-A254-442CE777B41E"
},
{
"criteria": "cpe:2.3:a:trendmicro:apex_one:saas:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0BD39638-1D52-4FA8-BBA0-305795D7D2E0"
},
{
"criteria": "cpe:2.3:a:trendmicro:worry-free_business_security:10.0:sp1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FFCE8717-85D2-4F4F-91DF-C6DA341C4E19"
},
{
"criteria": "cpe:2.3:a:trendmicro:worry-free_business_security_services:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "36934731-5AB1-4F9A-AC28-9FB157C11217"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "security@trendmicro.com"
}