CVE-2026-3780 (GCVE-0-2026-3780)
Vulnerability from cvelistv5 – Published: 2026-04-01 01:40 – Updated: 2026-04-01 15:51
VLAI?
Title
Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation
Summary
The application's installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.
Severity ?
7.3 (High)
CWE
- CWE-426 - Untrusted Search Path
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Reader |
Affected:
Versions 2025.3 and earlier
|
|||||||
|
|||||||||
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-3780",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T14:17:32.017921Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T15:51:01.904Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2025.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2025.3 and earlier"
},
{
"status": "affected",
"version": "Versions 14.0.2 and earlier"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The application\u0027s installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation."
}
],
"value": "The application\u0027s installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-426",
"description": "CWE-426: Untrusted Search Path",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T01:40:33.511Z",
"orgId": "14984358-7092-470d-8f34-ade47a7658a2",
"shortName": "Foxit"
},
"references": [
{
"url": "https://www.foxit.com/support/security-bulletins.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-3780",
"datePublished": "2026-04-01T01:40:33.511Z",
"dateReserved": "2026-03-08T03:43:30.840Z",
"dateUpdated": "2026-04-01T15:51:01.904Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-3780\",\"sourceIdentifier\":\"14984358-7092-470d-8f34-ade47a7658a2\",\"published\":\"2026-04-01T02:16:03.183\",\"lastModified\":\"2026-04-01T14:23:37.727\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The application\u0027s installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.\"},{\"lang\":\"es\",\"value\":\"El instalador de la aplicaci\u00f3n se ejecuta con privilegios elevados, pero resuelve los ejecutables del sistema y las DLLs utilizando rutas de b\u00fasqueda no confiables que pueden incluir directorios escribibles por el usuario, permitiendo a un atacante local colocar binarios maliciosos con los mismos nombres y que estos sean cargados o ejecutados en lugar de los archivos leg\u00edtimos del sistema, resultando en una escalada de privilegios local.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"14984358-7092-470d-8f34-ade47a7658a2\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.3,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"14984358-7092-470d-8f34-ade47a7658a2\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-426\"}]}],\"references\":[{\"url\":\"https://www.foxit.com/support/security-bulletins.html\",\"source\":\"14984358-7092-470d-8f34-ade47a7658a2\"}]}}",
"vulnrichment": {
"containers": "{\"cna\": {\"providerMetadata\": {\"orgId\": \"14984358-7092-470d-8f34-ade47a7658a2\", \"shortName\": \"Foxit\", \"dateUpdated\": \"2026-04-01T01:40:33.511Z\"}, \"title\": \"Foxit PDF Editor/Reader Installer Uncontrolled Search Path Privilege Escalation\", \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"cweId\": \"CWE-426\", \"description\": \"CWE-426: Untrusted Search Path\", \"type\": \"CWE\"}]}], \"impacts\": [{\"descriptions\": [{\"lang\": \"en\", \"value\": \"Potential arbitrary code execution\"}]}], \"affected\": [{\"vendor\": \"Foxit Software Inc.\", \"product\": \"Foxit PDF Reader\", \"platforms\": [\"Windows\"], \"versions\": [{\"status\": \"affected\", \"version\": \"Versions 2025.3 and earlier\"}], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Foxit Software Inc.\", \"product\": \"Foxit PDF Editor\", \"platforms\": [\"Windows\"], \"versions\": [{\"status\": \"affected\", \"version\": \"Versions 2025.3 and earlier\"}, {\"status\": \"affected\", \"version\": \"Versions 14.0.2 and earlier\"}], \"defaultStatus\": \"unaffected\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The application\u0027s installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.\", \"supportingMedia\": [{\"type\": \"text/html\", \"base64\": false, \"value\": \"The application\u0027s installer runs with elevated privileges but resolves system executables and DLLs using untrusted search paths that can include user-writable directories, allowing a local attacker to place malicious binaries with the same names and have them loaded or executed instead of the legitimate system files, resulting in local privilege escalation.\"}]}], \"references\": [{\"url\": \"https://www.foxit.com/support/security-bulletins.html\"}], \"metrics\": [{\"format\": \"CVSS\", \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}], \"cvssV3_1\": {\"version\": \"3.1\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"baseSeverity\": \"HIGH\", \"baseScore\": 7.3, \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H\"}}], \"source\": {\"discovery\": \"UNKNOWN\"}, \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-3780\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-01T14:17:32.017921Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-01T14:17:47.193Z\"}}]}",
"cveMetadata": "{\"cveId\": \"CVE-2026-3780\", \"assignerOrgId\": \"14984358-7092-470d-8f34-ade47a7658a2\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Foxit\", \"dateReserved\": \"2026-03-08T03:43:30.840Z\", \"datePublished\": \"2026-04-01T01:40:33.511Z\", \"dateUpdated\": \"2026-04-01T15:51:01.904Z\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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…