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CVE-2026-5164

A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an excessive number of descriptors, leading to a buffer overrun. This can cause a system crash, resulting in a Denial of Service (DoS).
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d2480d8331d84ed53e10298f0809d608dc59270783d1383740d949a11c8124c5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/2

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/0

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

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:9"],"defaultStatus":"affected","packageName":"virtio-win","product":"Red Hat Enterprise Linux 9","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/2
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:10"],"defaultStatus":"affected","packageName":"virtio-win","product":"Red Hat Enterprise Linux 10","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/0
{"collectionURL":"https://access.redhat.com/downloads/content/package-browser/","cpes":["cpe:/o:redhat:enterprise_linux:8"],"defaultStatus":"unaffected","packageName":"virtio-win","product":"Red Hat Enterprise Linux 8","vendor":"Red Hat"}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/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:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-120","description":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["vdb-entry","x_refsource_REDHAT"],"url":"https://access.redhat.com/security/cve/CVE-2026-5164"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/references/0
{"name":"RHBZ#2453014","tags":["issue-tracking","x_refsource_REDHAT"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2453014"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/references/1
{"url":"https://github.com/virtio-win/kvm-guest-drivers-windows/pull/1504"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:90d6699ca5ae2116740e44e56ec4aa476513ebf0184237c244bd7428f6a14fb4 · sha256:9e43dfff6af70947… · /containers/cna/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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