CVE-2026-3775 (GCVE-0-2026-3775)
Vulnerability from cvelistv5 – Published: 2026-04-01 01:40 – Updated: 2026-04-02 02:11
VLAI?
Title
Foxit PDF Editor/Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability
Summary
The application's update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low‑privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user‑writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution.
Severity ?
7.8 (High)
CWE
- CWE-427 - DLL Hijacking
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Foxit Software Inc. | Foxit PDF Editor |
Affected:
Versions 2025.3 and earlier
|
|||||||
|
|||||||||
Credits
Erik Egsgard of Field Effect working with TrendAI Zero Day Initiative
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-3775",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-04-01T14:16:37.847431Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-01T15:50:46.885Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Editor",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2025.3 and earlier"
}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"Windows"
],
"product": "Foxit PDF Reader",
"vendor": "Foxit Software Inc.",
"versions": [
{
"status": "affected",
"version": "Versions 2025.3 and earlier"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Erik Egsgard of Field Effect working with TrendAI Zero Day Initiative"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The application\u0027s update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low\u2011privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user\u2011writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution."
}
],
"value": "The application\u0027s update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low\u2011privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user\u2011writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "Potential arbitrary code execution"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-427",
"description": "CWE-427: DLL Hijacking",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-04-02T02:11:52.749Z",
"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 Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability",
"x_generator": {
"engine": "Vulnogram 1.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "14984358-7092-470d-8f34-ade47a7658a2",
"assignerShortName": "Foxit",
"cveId": "CVE-2026-3775",
"datePublished": "2026-04-01T01:40:36.975Z",
"dateReserved": "2026-03-08T03:42:27.208Z",
"dateUpdated": "2026-04-02T02:11:52.749Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-3775\",\"sourceIdentifier\":\"14984358-7092-470d-8f34-ade47a7658a2\",\"published\":\"2026-04-01T02:16:02.440\",\"lastModified\":\"2026-04-01T14:23:37.727\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The application\u0027s update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low\u2011privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user\u2011writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution.\"},{\"lang\":\"es\",\"value\":\"El servicio de actualizaci\u00f3n de la aplicaci\u00f3n, al buscar actualizaciones, carga ciertas bibliotecas del sistema desde una ruta de b\u00fasqueda que incluye directorios escribibles por usuarios con pocos privilegios y no est\u00e1 estrictamente restringida a ubicaciones de sistema confiables. Debido a que estas bibliotecas pueden ser resueltas y cargadas desde ubicaciones escribibles por el usuario, un atacante local puede colocar una biblioteca maliciosa all\u00ed y hacer que se cargue con privilegios de SYSTEM, lo que resulta en una escalada de privilegios local y ejecuci\u00f3n de c\u00f3digo arbitrario.\"}],\"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:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"14984358-7092-470d-8f34-ade47a7658a2\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-427\"}]}],\"references\":[{\"url\":\"https://www.foxit.com/support/security-bulletins.html\",\"source\":\"14984358-7092-470d-8f34-ade47a7658a2\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-3775\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-04-01T14:16:37.847431Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-04-01T14:16:42.873Z\"}}], \"cna\": {\"title\": \"Foxit PDF Editor/Reader Update Service Uncontrolled Search Path Element Local Privilege Escalation Vulnerability\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Erik Egsgard of Field Effect working with TrendAI Zero Day Initiative\"}], \"impacts\": [{\"descriptions\": [{\"lang\": \"en\", \"value\": \"Potential arbitrary code execution\"}]}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Foxit Software Inc.\", \"product\": \"Foxit PDF Editor\", \"versions\": [{\"status\": \"affected\", \"version\": \"Versions 2025.3 and earlier\"}], \"platforms\": [\"Windows\"], \"defaultStatus\": \"unaffected\"}, {\"vendor\": \"Foxit Software Inc.\", \"product\": \"Foxit PDF Reader\", \"versions\": [{\"status\": \"affected\", \"version\": \"Versions 2025.3 and earlier\"}], \"platforms\": [\"Windows\"], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://www.foxit.com/support/security-bulletins.html\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"The application\u0027s update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low\\u2011privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user\\u2011writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"The application\u0027s update service, when checking for updates, loads certain system libraries from a search path that includes directories writable by low\\u2011privileged users and is not strictly restricted to trusted system locations. Because these libraries may be resolved and loaded from user\\u2011writable locations, a local attacker can place a malicious library there and have it loaded with SYSTEM privileges, resulting in local privilege escalation and arbitrary code execution.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-427\", \"description\": \"CWE-427: DLL Hijacking\"}]}], \"providerMetadata\": {\"orgId\": \"14984358-7092-470d-8f34-ade47a7658a2\", \"shortName\": \"Foxit\", \"dateUpdated\": \"2026-04-02T02:11:52.749Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-3775\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-02T02:11:52.749Z\", \"dateReserved\": \"2026-03-08T03:42:27.208Z\", \"assignerOrgId\": \"14984358-7092-470d-8f34-ade47a7658a2\", \"datePublished\": \"2026-04-01T01:40:36.975Z\", \"assignerShortName\": \"Foxit\"}",
"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…