How severe is CVE-2024-5661?

CVE-2024-5661 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-5661 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5661?

CVE-2024-5661 primarily affects Citrix Xenserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-5661?

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

Does CVE-2024-5661 have an EU (EUVD) identifier?

Yes. CVE-2024-5661 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46835.

When was CVE-2024-5661 published?

CVE-2024-5661 was published on 2024-06-13 and last updated on 2026-06-17.

CVE-2024-5661

CVE-2024-5661 is a medium-severity vulnerability in Citrix Xenserver with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46835
Affected product: Citrix Xenserver
Published: 2024-06-13
Last modified: 2026-06-17

Description

An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive.

Frequently asked questions

What is CVE-2024-5661?: An issue has been identified in both XenServer 8 and Citrix Hypervisor 8.2 CU1 LTSR which may allow a malicious administrator of a guest VM to cause the host to become slow and/or unresponsive.
How severe is CVE-2024-5661?: CVE-2024-5661 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-5661 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5661?: CVE-2024-5661 primarily affects Citrix Xenserver. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-5661?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-5661 have an EU (EUVD) identifier?: Yes. CVE-2024-5661 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46835.
When was CVE-2024-5661 published?: CVE-2024-5661 was published on 2024-06-13 and last updated on 2026-06-17.

References

https://support.citrix.com/article/CTX677100/xenserver-and-citrix-hypervisor-security-update-for-cve20245661

Affected products (2)

cpe:2.3:a:citrix:xenserver:8.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:hypervisor:8.2:cumulative_update1:*:*:long_term_service:*:*:*

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