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CVE-2026-3842

🗓️ 16 Jul 2026 00:20:02Reported by fedoraType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 86 Views

CVE-2026-3842: QEMU hyperv syndbg may let local guest write beyond memory due to short memory map.

Related
Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
1dayexploit
1dayexploit
QEMU: Buffer Overflow
14 Aug 202600:17
–1dayexploit
attackerkb
attackerkb
CVE-2026-3842
16 Jul 202600:20
–attackerkb
astralinux
AstraLinux
Astra Linux – Vulnerability in Qemu
24 Jun 202615:11
–astralinux
bdu_fstec
BDU FSTEC
QEMU Buffer Overflow DoS
24 Aug 202600:00
–bdu_fstec
cbl_mariner
CBLMariner
CVE-2026-3842 affecting package qemu for versions less than 9.1.0-11
22 Jul 202622:06
–cbl_mariner
circl
Circl
CVE-2026-3842
16 Jul 202604:24
–circl
cvelist
Cvelist
CVE-2026-3842 Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write
16 Jul 202600:20
–cvelist
debiancve
Debian CVE
CVE-2026-3842
16 Jul 202600:20
–debiancve
nessus
Tenable Nessus
EulerOS 2.0 SP15 : qemu (EulerOS-SA-2026-3795)
17 Sep 202600:00
–nessus
nessus
Tenable Nessus
EulerOS 2.0 SP15 : qemu (EulerOS-SA-2026-3820)
17 Sep 202600:00
–nessus
Rows per page
Vulners
Node
qemuqemuRange7.1.0–11.0.0
[
  {
    "versions": [
      {
        "status": "affected",
        "version": "7.1.0",
        "lessThan": "11.0.0",
        "versionType": "semver"
      }
    ],
    "packageName": "qemu",
    "collectionURL": "https://gitlab.com/qemu-project/qemu",
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 10",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "qemu-kvm",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:10"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 6",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "qemu-kvm",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:6"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "qemu-kvm",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 7",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "qemu-kvm-ma",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:7"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 8",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "virt:rhel/qemu-kvm",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:8"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat Enterprise Linux 9",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "qemu-kvm",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/o:redhat:enterprise_linux:9"
    ]
  },
  {
    "vendor": "Red Hat",
    "product": "Red Hat OpenShift Container Platform 4",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "packageName": "rhcos",
    "defaultStatus": "unaffected",
    "cpes": [
      "cpe:/a:redhat:openshift:4"
    ]
  }
]

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01 Sep 2026 13:19Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.8
EPSS0.00167
SSVC
86