How severe is CVE-2007-2491?

CVE-2007-2491 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2007-2491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2491?

CVE-2007-2491 primarily affects Vmware Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-2491?

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

When was CVE-2007-2491 published?

CVE-2007-2491 was published on 2007-05-04 and last updated on 2026-06-16.

CVE-2007-2491

CVE-2007-2491 is a high-severity vulnerability in Vmware Server with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Vmware Server
Published: 2007-05-04
Last modified: 2026-06-16

Description

The PIIX4 power management subsystem in EMC VMware Workstation 5.5.3.34685 and VMware Server 1.0.1.29996 allows local users to write to arbitrary memory locations via a crafted poke to I/O port 0x1004, triggering a denial of service (virtual machine crash) or other unspecified impact, a related issue to CVE-2007-1337.

Frequently asked questions

What is CVE-2007-2491?: The PIIX4 power management subsystem in EMC VMware Workstation 5.5.3.34685 and VMware Server 1.0.1.29996 allows local users to write to arbitrary memory locations via a crafted poke to I/O port 0x1004, triggering a denial of service (virtual machine crash) or other unspecified impact, a related issue to CVE-2007-1337.
How severe is CVE-2007-2491?: CVE-2007-2491 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2007-2491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2491?: CVE-2007-2491 primarily affects Vmware Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-2491?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2007-2491 published?: CVE-2007-2491 was published on 2007-05-04 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:vmware:server:1.0.1_build_29996:*:*:*:*:*:*:*
cpe:2.3:a:vmware:workstation:5.5.3_build_34685:*:*:*:*:*:*:*

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