FKIE_CVE-2026-19743
Vulnerability from fkie_nvd - Published: 2026-09-29 16:17 - Updated: 2026-09-30 16:17
Severity
Summary
Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"platforms": [
"Windows",
"Linux",
"MacOS"
],
"product": "Full Client",
"vendor": "TeamViewer",
"versions": [
{
"lessThan": "15.82",
"status": "affected",
"version": "15.0",
"versionType": "custom"
},
{
"lessThan": "15.64.8 (Legacy Windows 7 \u0026 8)",
"status": "affected",
"version": "15.64.0 (Legacy Windows 7 \u0026 8)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (Windows)",
"status": "affected",
"version": "14.7.0 (Windows)",
"versionType": "custom"
},
{
"lessThan": "13.2.36230 (Windows)",
"status": "affected",
"version": "13.2.0 (Windows)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (Linux)",
"status": "affected",
"version": "14.7.0 (Linux)",
"versionType": "custom"
},
{
"lessThan": "13.2.153995 (Linux)",
"status": "affected",
"version": "13.2.0 (Linux)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (MacOS)",
"status": "affected",
"version": "14.7.0 (MacOS)",
"versionType": "custom"
},
{
"lessThan": "13.2.153994 (MacOS)",
"status": "affected",
"version": "13.2.0 (MacOS)",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"Windows",
"Linux",
"MacOS"
],
"product": "Host",
"vendor": "TeamViewer",
"versions": [
{
"lessThan": "15.82",
"status": "affected",
"version": "15.0",
"versionType": "custom"
},
{
"lessThan": "15.64.8 (Legacy Windows 7 \u0026 8)",
"status": "affected",
"version": "15.64.0 (Legacy Windows 7 \u0026 8)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (Windows)",
"status": "affected",
"version": "14.7.0 (Windows)",
"versionType": "custom"
},
{
"lessThan": "13.2.36230 (Windows)",
"status": "affected",
"version": "13.2.0 (Windows)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (Linux)",
"status": "affected",
"version": "14.7.0 (Linux)",
"versionType": "custom"
},
{
"lessThan": "13.2.153995 (Linux)",
"status": "affected",
"version": "13.2.0 (Linux)",
"versionType": "custom"
},
{
"lessThan": "14.7.48855 (MacOS)",
"status": "affected",
"version": "14.7.0 (MacOS)",
"versionType": "custom"
},
{
"lessThan": "13.2.153994 (MacOS)",
"status": "affected",
"version": "13.2.0 (MacOS)",
"versionType": "custom"
}
]
}
],
"source": "psirt@teamviewer.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Improper path validation in the local IPC service of TeamViewer Full Client and Host on Windows, Linux, and macOS prior to version 15.82 allows a local authenticated user with low privileges to perform arbitrary file writes with elevated privileges (NT AUTHORITY/SYSTEM \\ root). By sending crafted IPC commands to the local service daemon, an attacker could manipulate file paths, leading to local privilege escalation."
}
],
"id": "CVE-2026-19743",
"lastModified": "2026-09-30T16:17:12.610",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "psirt@teamviewer.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-19743",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-30T15:20:48.791393Z",
"version": "2.0.3"
}
}
]
},
"published": "2026-09-29T16:17:07.177",
"references": [
{
"source": "psirt@teamviewer.com",
"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1010/"
}
],
"sourceIdentifier": "psirt@teamviewer.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-22"
}
],
"source": "psirt@teamviewer.com",
"type": "Secondary"
}
]
}
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…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…