{
  "fix": "qemu-system 1:2.11\u002Bdfsg-1ubuntu7.42\u002Besm5",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-qemu-system-1-2.11-dfsg-1ubuntu7.42-esm5",
  "summary": "qemu-system 1:2.11\u002Bdfsg-1ubuntu7.42\u002Besm5, released February 19, 2026, fixes 11 CVEs in qemu-system. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "qemu-system 1:2.11\u002Bdfsg-1ubuntu7.42\u002Besm5 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2026-02-19T10:25:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2023-3354, high severity",
  "supported": false,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01606,
  "maxCvss": 8.2,
  "appliesTo": [
    {
      "product": "qemu-system",
      "productUrl": "https://patchblox.com/security/product/linux/qemu-system",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:2.11\u002Bdfsg-1ubuntu7.42\u002Besm5",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-3354",
      "url": "https://patchblox.com/security/cve/CVE-2023-3354",
      "title": "qemu: A flaw was found in the QEMU built-in VNC server",
      "priority": "High",
      "severity": "high",
      "cvss": 7.5,
      "epss": 0.01606,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2025-11234",
      "url": "https://patchblox.com/security/cve/CVE-2025-11234",
      "title": "Qemu-kvm: vnc websocket handshake use-after-free",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.00907,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-2861",
      "url": "https://patchblox.com/security/cve/CVE-2023-2861",
      "title": "qemu: A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU",
      "priority": "High",
      "severity": "high",
      "cvss": 7.1,
      "epss": 0.00376,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-3446",
      "url": "https://patchblox.com/security/cve/CVE-2024-3446",
      "title": "qemu-block-extra: A double free vulnerability was found in QEMU virtio devices (virtio-gpu,virtio-serial-bus, virtio-crypto), where the...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.2,
      "epss": 0.00305,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-5088",
      "url": "https://patchblox.com/security/cve/CVE-2023-5088",
      "title": "qemu: A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to off...",
      "priority": "High",
      "severity": "high",
      "cvss": 7,
      "epss": 0.00257,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-6519",
      "url": "https://patchblox.com/security/cve/CVE-2024-6519",
      "title": "qemu-guest-agent: lsi53c895a: keep a reference to the device while SCRIPTS execute (Paolo Bonzini) [Orabug: 37517793]",
      "priority": "High",
      "severity": "MODERATE",
      "cvss": 8.2,
      "epss": 0.00249,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-3447",
      "url": "https://patchblox.com/security/cve/CVE-2024-3447",
      "title": "qemu-block-extra: A heap-based buffer overflow was found in the SDHCI device emulation ofQEMU",
      "priority": "Routine",
      "severity": "Medium",
      "cvss": 6,
      "epss": 0.00557,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-14394",
      "url": "https://patchblox.com/security/cve/CVE-2020-14394",
      "title": "qemu: An infinite loop flaw was found in the USB xHCI controller emulation of QEMU while computing the length of the Transf...",
      "priority": "Routine",
      "severity": "low",
      "cvss": 3.2,
      "epss": 0.0039,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2024-8354",
      "url": "https://patchblox.com/security/cve/CVE-2024-8354",
      "title": "qemu: Fixed assertion failure in usb_ep_get() (bsc#1230834)",
      "priority": "Routine",
      "severity": "MODERATE",
      "cvss": 5.5,
      "epss": 0.00286,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-3180",
      "url": "https://patchblox.com/security/cve/CVE-2023-3180",
      "title": "qemu: A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypt...",
      "priority": "Routine",
      "severity": "medium",
      "cvss": 6.5,
      "epss": 0.00233,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2026-2243",
      "url": "https://patchblox.com/security/cve/CVE-2026-2243",
      "title": "Qemu-kvm: heap buffer out-of-bounds read in vmdk compressed grain parsing",
      "priority": "Routine",
      "severity": "Moderate",
      "cvss": 5.1,
      "epss": 0.00133,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-13T14:02:24Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}