How severe is CVE-2010-4573?

CVE-2010-4573 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-4573 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4573?

CVE-2010-4573 affects Vmware Esxi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-4573?

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-2010-4573 published?

CVE-2010-4573 was published on 2010-12-22 and last updated on 2026-06-16.

CVE-2010-4573

CVE-2010-4573 is a critical-severity vulnerability in Vmware Esxi with a CVSS 2.0 base score of 9.3. 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-287.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Vmware Esxi
Published: 2010-12-22
Last modified: 2026-06-16

Description

The Update Installer in VMware ESXi 4.1, when a modified sfcb.cfg is present, does not properly configure the SFCB authentication mode, which allows remote attackers to obtain access via an arbitrary username and password.

Frequently asked questions

What is CVE-2010-4573?: The Update Installer in VMware ESXi 4.1, when a modified sfcb.cfg is present, does not properly configure the SFCB authentication mode, which allows remote attackers to obtain access via an arbitrary username and password.
How severe is CVE-2010-4573?: CVE-2010-4573 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-4573 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4573?: CVE-2010-4573 affects Vmware Esxi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-4573?: 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-2010-4573 published?: CVE-2010-4573 was published on 2010-12-22 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:vmware:esxi:4.1:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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