How severe is CVE-2009-1805?

CVE-2009-1805 has a CVSS 2.0 base score of 4.0, rated medium severity.

Is CVE-2009-1805 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1805?

CVE-2009-1805 primarily affects Vmware Ace. In total, 101 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1805?

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

When was CVE-2009-1805 published?

CVE-2009-1805 was published on 2009-06-01 and last updated on 2026-06-16.

CVE-2009-1805

CVE-2009-1805 is a medium-severity vulnerability in Vmware Ace with a CVSS 2.0 base score of 4.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 4.0)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Vmware Ace
Published: 2009-06-01
Last modified: 2026-06-16

Description

Unspecified vulnerability in the VMware Descheduled Time Accounting driver in VMware Workstation 6.5.1 and earlier, VMware Player 2.5.1 and earlier, VMware ACE 2.5.1 and earlier, VMware Server 1.x before 1.0.9 build 156507 and 2.x before 2.0.1 build 156745, VMware Fusion 2.x before 2.0.2 build 147997, VMware ESXi 3.5, and VMware ESX 3.0.2, 3.0.3, and 3.5, when the Descheduled Time Accounting Service is not running, allows guest OS users on Windows to cause a denial of service via unknown vectors.

Frequently asked questions

What is CVE-2009-1805?: Unspecified vulnerability in the VMware Descheduled Time Accounting driver in VMware Workstation 6.5.1 and earlier, VMware Player 2.5.1 and earlier, VMware ACE 2.5.1 and earlier, VMware Server 1.x before 1.0.9 build 156507 and 2.x before 2.0.1 build 156745, VMware Fusion 2.x before 2.0.2 build 147997, VMware ESXi 3.5, and VMware ESX 3.0.2, 3.0.3, and 3.5, when the Descheduled Time Accounting Service is not running, allows guest OS users on Windows to cause a denial of service via unknown vectors.
How severe is CVE-2009-1805?: CVE-2009-1805 has a CVSS 2.0 base score of 4.0, rated medium severity.
Is CVE-2009-1805 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1805?: CVE-2009-1805 primarily affects Vmware Ace. In total, 101 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1805?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-1805 published?: CVE-2009-1805 was published on 2009-06-01 and last updated on 2026-06-16.

References

Affected products (101)

cpe:2.3:a:vmware:ace:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.3_build_54075:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.1_build_55017:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:ace:2.5.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esx:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esx:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esx:3.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:esxi:3.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:fusion:2.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:*:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:2.0:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:vmware:player:2.0.4:*:*:*:*:*:*:*

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