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CVE Explorer

CVE-2026-3842

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpu_physical_memory_map() returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in unauthorized access to guest memory or corruption of heap-allocated objects, potentially causing information disclosure, data integrity issues, or a denial of service.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:00bbe208255b7be54afd2bb9778c41bc3052841b87095201786d0578a37789f9
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 15 assertions

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm-ma","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm-ma","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"virt:rhel/qemu-kvm","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/5

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"virt:rhel/qemu-kvm","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/4

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/7

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/1

{"collectionURL":"https://gitlab.com/qemu-project/qemu","defaultStatus":"unaffected","packageName":"qemu","versions":[{"lessThan":"11.0.0","status":"affected","version":"7.1.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/1

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/3

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/6

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/2

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/0

{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/2

Affected products and versions

15 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm-ma","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm-ma","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"virt:rhel/qemu-kvm","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/5
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"virt:rhel/qemu-kvm","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/4
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/7
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/1
{"collectionURL":"https://gitlab.com/qemu-project/qemu","defaultStatus":"unaffected","packageName":"qemu","versions":[{"lessThan":"11.0.0","status":"affected","version":"7.1.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/1
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/3
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/a:redhat:openshift:4"],"defaultStatus":"unaffected","packageName":"rhcos","product":"Red Hat OpenShift Container Platform 4","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/6
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:7"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 7","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:6"],"defaultStatus":"unaffected","packageName":"qemu-kvm","product":"Red Hat Enterprise Linux 6","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/affected/2

Provider-owned CVSS observations

2 source assertions
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/metrics/1/cvssV3_1
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-3842"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/references/0
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-3842"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/references/0
{"name":"RHBZ#2458150","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458150"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/cna/references/1
{"name":"RHBZ#2458150","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458150"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/references/1
{"tags":["x_sadp-csaf-vex"],"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3842.json"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:267220ebdda9572e9df9d1676500c485165a5c78773e6ba6beb65cdd0037ca80 · sha256:c2c358069bfe6fc3… · /containers/adp/0/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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