Vulnerability-Lookup

CVE-2026-15419 (GCVE-0-2026-15419)

Vulnerability from cvelistv5 – Published: 2026-09-10 17:15 – Updated: 2026-09-10 18:21

Title

CP210x Driver Memory Corruption results in Arbitrary Code Execution

Summary

In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges.

Severity

7 (High)


                        
                          CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-10 18:21 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

Silabs mitre root

References

1 reference

URL	Tags
https://siliconlabs.lightning.force.com/sfc/servl…	vendor-advisorypermissions-required

Impacted products

1 product

Vendor	Product	Version	CPE status
Silicon Labs	silabser.sys driver	Affected: 0 , ≤ 11.5.0 (semver)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-15419

Vulnerability from fkie_nvd - Published: 2026-09-10 18:17 - Updated: 2026-09-10 19:54

Severity

7.0 (High) - CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	product-security@silabs.com	https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "silabser.sys driver",
          "repo": "https://www.silabs.com/software-and-tools/usb-to-uart-bridge-vcp-drivers?tab=downloads",
          "vendor": "Silicon Labs",
          "versions": [
            {
              "lessThanOrEqual": "11.5.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "product-security@silabs.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges."
    }
  ],
  "id": "CVE-2026-15419",
  "lastModified": "2026-09-10T19:54:25.810",
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          "attackRequirements": "NONE",
          "attackVector": "PHYSICAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
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          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
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GHSA-56C3-4JHX-HJ8G

Vulnerability from github – Published: 2026-09-10 18:31 – Updated: 2026-09-10 18:31

Details

Severity

7.0 (High)


                  
                    CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-15419"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-10T18:17:55Z",
    "severity": "HIGH"
  },
  "details": "In the silabser.sys driver for CP210x devices v11.5.0 and earlier, a local unprivileged user with a malicious device can use malformed packets to corrupt kernel pool memory, resulting in arbitrary code execution with escalated privileges.",
  "id": "GHSA-56c3-4jhx-hj8g",
  "modified": "2026-09-10T18:31:48Z",
  "published": "2026-09-10T18:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15419"
    },
    {
      "type": "WEB",
      "url": "https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm0000100HA6IAM?operationContext=S1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2026-15419 (GCVE-0-2026-15419)

FKIE_CVE-2026-15419

GHSA-56C3-4JHX-HJ8G

Tags

Sightings

Nomenclature