How severe is CVE-2011-1789?

CVE-2011-1789 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-1789 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-2011-1789?

CVE-2011-1789 primarily affects Vmware Esx. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1789?

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

When was CVE-2011-1789 published?

CVE-2011-1789 was published on 2011-05-09 and last updated on 2026-06-16.

CVE-2011-1789

CVE-2011-1789 is a medium-severity vulnerability in Vmware Esx with a CVSS 2.0 base score of 5.0. 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-310.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Vmware Esx
Published: 2011-05-09
Last modified: 2026-06-16

Description

The self-extracting installer in the vSphere Client Installer package in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, VMware ESXi 4.x before 4.1 Update 1, and VMware ESX 4.x before 4.1 Update 1 does not have a digital signature, which might make it easier for remote attackers to spoof the software distribution via a Trojan horse installer.

Frequently asked questions

What is CVE-2011-1789?: The self-extracting installer in the vSphere Client Installer package in VMware vCenter 4.0 before Update 3 and 4.1 before Update 1, VMware ESXi 4.x before 4.1 Update 1, and VMware ESX 4.x before 4.1 Update 1 does not have a digital signature, which might make it easier for remote attackers to spoof the software distribution via a Trojan horse installer.
How severe is CVE-2011-1789?: CVE-2011-1789 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-1789 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-2011-1789?: CVE-2011-1789 primarily affects Vmware Esx. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1789?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1789 published?: CVE-2011-1789 was published on 2011-05-09 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:vmware:esx:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esx:4.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esxi:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esxi:4.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter:4.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter:4.0:update_1:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter:4.0:update_2:*:*:*:*:*:*
cpe:2.3:a:vmware:vcenter:4.1:*:*:*:*:*:*:*

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