CVE-2025-40540 (GCVE-0-2025-40540)
Vulnerability from cvelistv5 – Published: 2026-02-24 07:41 – Updated: 2026-02-26 14:44
VLAI
Title
SolarWinds Serv-U Type Confusion Remote Code Execution Vulnerability
Summary
A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.
This issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-704 - Incorrect Type Conversion or Cast
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SolarWinds | Serv-U |
Affected:
SolarWinds Serv-U 15.5.3 and prior versions
|
Date Public
2026-02-24 07:50
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40540",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-25T04:55:27.447736Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-02-26T14:44:09.561Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"platforms": [
"Windows",
"Linux"
],
"product": "Serv-U",
"vendor": "SolarWinds",
"versions": [
{
"status": "affected",
"version": "SolarWinds Serv-U 15.5.3 and prior versions"
}
]
}
],
"datePublic": "2026-02-24T07:50:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\u003cbr\u003e\u003cbr\u003eThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.\u003cbr\u003e\u003cbr\u003e"
}
],
"value": "A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\n\nThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default."
}
],
"impacts": [
{
"capecId": "CAPEC-233",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-233 Privilege Escalation"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-704",
"description": "CWE-704 Incorrect Type Conversion or Cast",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-02-24T07:41:17.517Z",
"orgId": "49f11609-934d-4621-84e6-e02e032104d6",
"shortName": "SolarWinds"
},
"references": [
{
"url": "https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40540"
},
{
"url": "https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4_release_notes.htm"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.5.4 as soon as it becomes available.\u003cbr\u003e"
}
],
"value": "SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.5.4 as soon as it becomes available."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "SolarWinds Serv-U Type Confusion Remote Code Execution Vulnerability",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "49f11609-934d-4621-84e6-e02e032104d6",
"assignerShortName": "SolarWinds",
"cveId": "CVE-2025-40540",
"datePublished": "2026-02-24T07:41:17.517Z",
"dateReserved": "2025-04-16T08:00:57.647Z",
"dateUpdated": "2026-02-26T14:44:09.561Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-40540",
"date": "2026-07-07",
"epss": "0.00445",
"percentile": "0.35706"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2025-40540\",\"sourceIdentifier\":\"psirt@solarwinds.com\",\"published\":\"2026-02-24T08:16:28.053\",\"lastModified\":\"2026-06-17T09:21:43.853\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\\n\\nThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.\"},{\"lang\":\"es\",\"value\":\"Existe una vulnerabilidad de confusi\u00f3n de tipos en Serv-U que, al ser explotada, otorga a un actor malicioso la capacidad de ejecutar c\u00f3digo nativo arbitrario como cuenta privilegiada.\\n\\nEste problema requiere privilegios de administrador para ser explotado. En implementaciones de Windows, el riesgo se califica como medio porque los servicios con frecuencia se ejecutan bajo cuentas de servicio con menos privilegios por defecto.\"}],\"affected\":[{\"source\":\"psirt@solarwinds.com\",\"affectedData\":[{\"vendor\":\"SolarWinds\",\"product\":\"Serv-U\",\"defaultStatus\":\"affected\",\"platforms\":[\"Windows\",\"Linux\"],\"versions\":[{\"version\":\"SolarWinds Serv-U 15.5.3 and prior versions\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@solarwinds.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.1,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.3,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-02-25T04:55:27.447736Z\",\"id\":\"CVE-2025-40540\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"psirt@solarwinds.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-704\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:solarwinds:serv-u:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"15.5.4\",\"matchCriteriaId\":\"0879DDA2-3F57-41C7-A689-4B904310687E\"}]}]}],\"references\":[{\"url\":\"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4_release_notes.htm\",\"source\":\"psirt@solarwinds.com\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40540\",\"source\":\"psirt@solarwinds.com\",\"tags\":[\"Vendor Advisory\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-40540\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-02-25T04:55:27.447736Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-02-24T15:34:44.192Z\"}}], \"cna\": {\"title\": \"SolarWinds Serv-U Type Confusion Remote Code Execution Vulnerability\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"impacts\": [{\"capecId\": \"CAPEC-233\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"CAPEC-233 Privilege Escalation\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"SolarWinds\", \"product\": \"Serv-U\", \"versions\": [{\"status\": \"affected\", \"version\": \"SolarWinds Serv-U 15.5.3 and prior versions\"}], \"platforms\": [\"Windows\", \"Linux\"], \"defaultStatus\": \"affected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.5.4 as soon as it becomes available.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"SolarWinds recommends that customers upgrade to SolarWinds Serv-U 15.5.4 as soon as it becomes available.\u003cbr\u003e\", \"base64\": false}]}], \"datePublic\": \"2026-02-24T07:50:00.000Z\", \"references\": [{\"url\": \"https://www.solarwinds.com/trust-center/security-advisories/CVE-2025-40540\"}, {\"url\": \"https://documentation.solarwinds.com/en/success_center/servu/content/release_notes/servu_15-5-4_release_notes.htm\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\\n\\nThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"A type confusion vulnerability exists in Serv-U which when exploited, gives a malicious actor the ability to execute arbitrary native code as privileged account.\u003cbr\u003e\u003cbr\u003eThis issue requires administrative privileges to abuse. On Windows deployments, the risk is scored as a medium because services frequently run under less-privileged service accounts by default.\u003cbr\u003e\u003cbr\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-704\", \"description\": \"CWE-704 Incorrect Type Conversion or Cast\"}]}], \"providerMetadata\": {\"orgId\": \"49f11609-934d-4621-84e6-e02e032104d6\", \"shortName\": \"SolarWinds\", \"dateUpdated\": \"2026-02-24T07:41:17.517Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2025-40540\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-02-26T14:44:09.561Z\", \"dateReserved\": \"2025-04-16T08:00:57.647Z\", \"assignerOrgId\": \"49f11609-934d-4621-84e6-e02e032104d6\", \"datePublished\": \"2026-02-24T07:41:17.517Z\", \"assignerShortName\": \"SolarWinds\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…