How severe is CVE-2010-4238?

CVE-2010-4238 has a CVSS 2.0 base score of 5.5, rated medium severity.

Is CVE-2010-4238 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4238?

CVE-2010-4238 affects Citrix Xen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-4238?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-4238 published?

CVE-2010-4238 was published on 2011-01-22 and last updated on 2026-06-16.

CVE-2010-4238

CVE-2010-4238 is a medium-severity vulnerability in Citrix Xen with a CVSS 2.0 base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-264.

Key facts

Severity: Medium (CVSS 2.0 base score 5.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Citrix Xen
Published: 2011-01-22
Last modified: 2026-06-16

Description

The vbd_create function in Xen 3.1.2, when the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 is used, allows guest OS users to cause a denial of service (host OS panic) via an attempted access to a virtual CD-ROM device through the blkback driver. NOTE: some of these details are obtained from third party information.

Frequently asked questions

What is CVE-2010-4238?: The vbd_create function in Xen 3.1.2, when the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 is used, allows guest OS users to cause a denial of service (host OS panic) via an attempted access to a virtual CD-ROM device through the blkback driver. NOTE: some of these details are obtained from third party information.
How severe is CVE-2010-4238?: CVE-2010-4238 has a CVSS 2.0 base score of 5.5, rated medium severity.
Is CVE-2010-4238 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4238?: CVE-2010-4238 affects Citrix Xen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-4238?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2010-4238 published?: CVE-2010-4238 was published on 2011-01-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:citrix:xen:3.1.2:*:*:*:*:*:*:*

More vulnerabilities in Citrix Xen

CVE-2011-1898 — High (CVSS 7.4): Xen 4.1 before 4.1.1 and 4.0 before 4.0.2, when using PCI passthrough on Intel VT-d chipsets that do not have interrupt…
CVE-2008-5716 — High (CVSS 7.2): xend in Xen 3.3.0 does not properly restrict a guest VM's write access within the /local/domain xenstore directory…
CVE-2008-4405 — High (CVSS 7.2): xend in Xen 3.0.3 does not properly limit the contents of the /local/domain xenstore directory tree, and does not…
CVE-2011-1583 — Medium (CVSS 6.9): Multiple integer overflows in tools/libxc/xc_dom_bzimageloader.c in Xen 3.2, 3.3, 4.0, and 4.1 allow local users to…
CVE-2010-4255 — Medium (CVSS 6.1): The fixup_page_fault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization…
CVE-2010-4247 — Medium (CVSS 5.5): The do_block_io_op function in (1) drivers/xen/blkback/blkback.c and (2) drivers/xen/blktap/blktap.c in Xen before…

All CVEs affecting Citrix Xen →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

CVE-2016-8363 — Critical (CVSS 10.0): An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232…
CVE-2016-7457 — Critical (CVSS 10.0): VMware vRealize Operations (aka vROps) 6.x before 6.4.0 allows remote authenticated users to gain privileges, or halt…
CVE-2015-7425 — Critical (CVSS 10.0): The Data Protection component in the VMware vSphere GUI in IBM Tivoli Storage Manager for Virtual Environments: Data…
CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →