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Xen

Records542All Threatist records
Exploited (KEV)0None in CISA KEV
CVSS critical29CVSS 9.0–10.0
CVSS high175CVSS 7.0–8.9

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Xen records in CISA KEV

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Records

542 records

Priority MEDIUM 54

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service (host OS panic or hang) by triggering many #DB (aka Debug) exceptions, related to svm.c…

CVSS 3.1CRITICAL 10.0 Network No auth No interaction EPSS 0.02481 Published 2015-11-16 Partial fix CWE-399
Priority MEDIUM 52

A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected beh…

CVSS 3.0HIGH 7.8 Local Low privileges No interaction EPSS 0.18485 Published 2018-05-08 Partial fix CWE-362
Priority MEDIUM 50

Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used.

CVSS 3.1HIGH 7.5 Network Low privileges No interaction EPSS 0.17444 Published 2024-05-16 No fix listed CWE-693
Priority MEDIUM 50

The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (…

CVSS 2.0HIGH 7.7 Adjacent network Low privileges Interaction — EPSS 0.15275 Published 2015-05-13 Partial fix CWE-119
Priority MEDIUM 49

The workaround for XSA-433 (Zenbleed, CVE-2023-20593) was later re-worked to better integrate with other manipulations of the same MSR.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00336 Published 2026-10-13 No fix listed CWE-670
Priority MEDIUM 49

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in th…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00382 Published 2025-09-11 No fix listed CWE-366
Priority MEDIUM 49

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in th…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00488 Published 2025-09-11 No fix listed CWE-395
Priority MEDIUM 49

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] There are multiple issues related to the handling and accessing of guest memory pages in th…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00488 Published 2025-09-11 No fix listed CWE-395
TI-2017-01871 CVE-2017-2620 · GHSA-v6gr-ph59-9hqm

Out-of-bounds write in Qemu:

Priority MEDIUM 49

Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue.

CVSS 3.0CRITICAL 9.9 Network Low privileges No interaction EPSS 0.03559 Published 2018-07-27 Partial fix CWE-787
Priority MEDIUM 48

The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping, which allows guest OS users to cause a denial of service (count mismanagement and m…

CVSS 3.0CRITICAL 10.0 Network No auth No interaction EPSS 0.02549 Published 2017-07-05 Will not fix CWE-119
Priority MEDIUM 48

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count…

CVSS 3.0CRITICAL 10.0 Network No auth No interaction EPSS 0.02549 Published 2017-07-05 Will not fix CWE-119
Priority MEDIUM 47

The grant-table feature in Xen through 4.8.x provides false mapping information in certain cases of concurrent unmap calls, which allows backend attackers to obtain sensitive information or gain privileges, aka XSA-218 b…

CVSS 3.0CRITICAL 9.8 Network No auth No interaction EPSS 0.02815 Published 2017-07-05 Will not fix
TI-2017-01866 CVE-2017-2615 · GHSA-wj78-4p23-4g74

Out-of-bounds write in QEMU display

Priority MEDIUM 46

Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue.

CVSS 3.0CRITICAL 9.1 Network High privileges No interaction EPSS 0.03648 Published 2018-07-02 Partial fix CWE-787
Priority MEDIUM 44

Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive infor…

CVSS 3.0CRITICAL 9.1 Network No auth No interaction EPSS 0.02567 Published 2017-07-05 No fix listed CWE-476
TI-2026-30770 CVE-2026-42486 · GHSA-f6rw-qmp5-m443

Multiple RBAC issues in XAPI

Priority MEDIUM 42

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] XAPI can configure different users with different roles, using Role Based Access Control.

CVSS 4.0CRITICAL 9.4 Local No auth No interaction EPSS 0.00167 Published 2026-07-09 No fix listed CWE-250
TI-2026-18983 CVE-2026-23562 · GHSA-xh76-qhvp-prh8

Multiple RBAC issues in XAPI

Priority MEDIUM 42

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] XAPI can configure different users with different roles, using Role Based Access Control.

CVSS 4.0CRITICAL 9.4 Local No auth No interaction EPSS 0.00167 Published 2026-07-09 No fix listed CWE-250
TI-2026-18982 CVE-2026-23561 · GHSA-35jv-46p3-x4g4

Multiple RBAC issues in XAPI

Priority MEDIUM 42

[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] XAPI can configure different users with different roles, using Role Based Access Control.

CVSS 4.0CRITICAL 9.4 Local No auth No interaction EPSS 0.00167 Published 2026-07-09 No fix listed CWE-250
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