How severe is CVE-2017-4923?

CVE-2017-4923 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-2017-4923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-4923?

CVE-2017-4923 affects Vmware Vcenter Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-4923?

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-2017-4923 published?

CVE-2017-4923 was published on 2017-08-01 and last updated on 2026-06-17.

CVE-2017-4923

CVE-2017-4923 is a critical-severity vulnerability in Vmware Vcenter Server with a CVSS 3.x base score of 9.8. 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Vmware Vcenter Server
Published: 2017-08-01
Last modified: 2026-06-17

Description

VMware vCenter Server (6.5 prior to 6.5 U1) contains an information disclosure vulnerability. This issue may allow plaintext credentials to be obtained when using the vCenter Server Appliance file-based backup feature.

Frequently asked questions

What is CVE-2017-4923?: VMware vCenter Server (6.5 prior to 6.5 U1) contains an information disclosure vulnerability. This issue may allow plaintext credentials to be obtained when using the vCenter Server Appliance file-based backup feature.
How severe is CVE-2017-4923?: CVE-2017-4923 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-2017-4923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-4923?: CVE-2017-4923 affects Vmware Vcenter Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-4923?: 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-2017-4923 published?: CVE-2017-4923 was published on 2017-08-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vmware:vcenter_server:6.5:*:*:*:*:*:*:*

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