Vulnerability-Lookup

CNVD-2026-18426

Vulnerability from cnvd - Published: 2026-04-24

Title

Oracle VM VirtualBox Core组件内存破坏漏洞（CNVD-2026-18426）

Description

Oracle VM VirtualBox是一款由Oracle开发的桌面虚拟化软件，主要用于在主机操作系统上创建和运行虚拟机。 Oracle VM VirtualBox存在内存破坏漏洞。该漏洞源于Core组件未能正确处理内存操作，攻击者可利用该漏洞通过本地高权限登录在基础设施上执行恶意代码，最终完全控制Oracle VM VirtualBox。

Severity

中

Patch Name

Oracle VM VirtualBox Core组件内存破坏漏洞（CNVD-2026-18426）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://www.oracle.com/security-alerts/cpuapr2026.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-35246

Impacted products

Name
Oracle Oracle VM VirtualBox 7.2.6

Show details on source website

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-35246",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-35246"
    }
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  "description": "Oracle VM VirtualBox\u662f\u4e00\u6b3e\u7531Oracle\u5f00\u53d1\u7684\u684c\u9762\u865a\u62df\u5316\u8f6f\u4ef6\uff0c\u4e3b\u8981\u7528\u4e8e\u5728\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u521b\u5efa\u548c\u8fd0\u884c\u865a\u62df\u673a\u3002\n\nOracle VM VirtualBox\u5b58\u5728\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eCore\u7ec4\u4ef6\u672a\u80fd\u6b63\u786e\u5904\u7406\u5185\u5b58\u64cd\u4f5c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7\u672c\u5730\u9ad8\u6743\u9650\u767b\u5f55\u5728\u57fa\u7840\u8bbe\u65bd\u4e0a\u6267\u884c\u6076\u610f\u4ee3\u7801\uff0c\u6700\u7ec8\u5b8c\u5168\u63a7\u5236Oracle VM VirtualBox\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.oracle.com/security-alerts/cpuapr2026.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-18426",
  "openTime": "2026-04-24",
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  "patchName": "Oracle VM VirtualBox Core\u7ec4\u4ef6\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2026-18426\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Oracle Oracle VM VirtualBox 7.2.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-35246",
  "serverity": "\u4e2d",
  "submitTime": "2026-04-22",
  "title": "Oracle VM VirtualBox Core\u7ec4\u4ef6\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2026-18426\uff09"
}

CVE-2026-35246 (GCVE-0-2026-35246)

Vulnerability from cvelistv5 – Published: 2026-04-21 20:35 – Updated: 2026-04-23 03:55

Summary

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). The supported version that is affected is 7.2.6. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-22 00:00 UTC

CWE

Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox.
CWE-284 - Improper Access Control

Assigner

oracle mitre root

References

1 reference

URL	Tags
https://www.oracle.com/security-alerts/cpuapr2026.html	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Oracle Corporation	Oracle VM VirtualBox	Affected: 7.2.6 (semver) cpe:2.3:a:oracle:vm_virtualbox:7.2.6:::::::*

Show details on NVD website

JSON

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                "id": "CVE-2026-35246",
                "options": [
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                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-22T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "problemTypes": [
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                "description": "CWE-284 Improper Access Control",
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          "dateUpdated": "2026-04-23T03:55:51.831Z",
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      }
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              "versionType": "semver"
            }
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      "cpeApplicability": [
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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.

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.

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CNVD-2026-18426

CVE-2026-35246 (GCVE-0-2026-35246)

Tags

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Nomenclature

Related by attack behaviour