How severe is CVE-2007-1531?

CVE-2007-1531 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-1531 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1531?

CVE-2007-1531 primarily affects Microsoft Windows Vista. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2007-1531?

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

When was CVE-2007-1531 published?

CVE-2007-1531 was published on 2007-03-20 and last updated on 2026-06-16.

CVE-2007-1531

CVE-2007-1531 is a medium-severity vulnerability in Microsoft Windows Vista with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 23% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 23% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Windows Vista
Published: 2007-03-20
Last modified: 2026-06-16

Description

Microsoft Windows XP and Vista overwrites ARP table entries included in gratuitous ARP, which allows remote attackers to cause a denial of service (loss of network access) by sending a gratuitous ARP for the address of the Vista host.

Frequently asked questions

What is CVE-2007-1531?: Microsoft Windows XP and Vista overwrites ARP table entries included in gratuitous ARP, which allows remote attackers to cause a denial of service (loss of network access) by sending a gratuitous ARP for the address of the Vista host.
How severe is CVE-2007-1531?: CVE-2007-1531 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-1531 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1531?: CVE-2007-1531 primarily affects Microsoft Windows Vista. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2007-1531?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-1531 published?: CVE-2007-1531 was published on 2007-03-20 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:*:*:*:*:*:*:*:*

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