How severe is CVE-2018-14007?

CVE-2018-14007 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-14007 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14007?

CVE-2018-14007 primarily affects Citrix Xenserver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-14007?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2018-14007 published?

CVE-2018-14007 was published on 2018-08-15 and last updated on 2026-06-17.

CVE-2018-14007

CVE-2018-14007 is a critical-severity vulnerability in Citrix Xenserver with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 56% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 56% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Citrix Xenserver
Published: 2018-08-15
Last modified: 2026-06-17

Description

Citrix XenServer 7.1 and newer allows Directory Traversal.

Frequently asked questions

What is CVE-2018-14007?: Citrix XenServer 7.1 and newer allows Directory Traversal.
How severe is CVE-2018-14007?: CVE-2018-14007 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-14007 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 56% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14007?: CVE-2018-14007 primarily affects Citrix Xenserver. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-14007?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-14007 published?: CVE-2018-14007 was published on 2018-08-15 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:citrix:xenserver:7.1:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:7.4:*:*:*:*:*:*:*
cpe:2.3:a:citrix:xenserver:7.5:*:*:*:*:*:*:*

More vulnerabilities in Citrix Xenserver

CVE-2014-4947 — Critical (CVSS 10.0): Buffer overflow in the HVM graphics console support in Citrix XenServer 6.2 Service Pack 1 and earlier has unspecified…
CVE-2015-7705 — Critical (CVSS 9.8): The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified…
CVE-2016-5302 — Critical (CVSS 9.8): Citrix XenServer 7.0 before Hotfix XS70E003, when a deployment has been upgraded from an earlier release, might allow…
CVE-2017-12137 — High (CVSS 8.8): arch/x86/mm.c in Xen allows local PV guest OS users to gain host OS privileges via vectors related to map_grant_ref.
CVE-2017-12135 — High (CVSS 8.8): Xen allows local OS guest users to cause a denial of service (crash) or possibly obtain sensitive information or gain…
CVE-2017-12134 — High (CVSS 8.8): The xen_biovec_phys_mergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt…

All CVEs affecting Citrix Xenserver →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →