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CVE-2024-5661

Potential Denial of Service affecting XenServer and Citrix Hypervisor

MEDIUM
6
CVSS Score
Published: June 13, 2024 at 05:58 AM UTC
Updated: June 17, 2026 at 08:16 AM UTC
2 products affected across 1 vendorHypervisorXenServer

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Severity
MEDIUM6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Hypervisor· Citrix
95%
v ≥ 88.2 CU1 LTSR ≤ v ≤ XS82ECU106888.2 CU1 LTSR8.2 cumulative_update1
XenServer· Citrix
95%
v ≥ 88.2 CU1 LTSR ≤ v ≤ XS82ECU106888.08.2 CU1 LTSR

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://support.citrix.com/article/CTX677100/xenserver-and-citrix-hypervisor-security-update-for-cve20245661

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6MEDIUMCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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