How severe is CVE-2009-1132?

CVE-2009-1132 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2009-1132 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1132?

CVE-2009-1132 primarily affects Microsoft Windows Server 2008. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1132?

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-2009-1132 published?

CVE-2009-1132 was published on 2009-09-08 and last updated on 2026-06-16.

CVE-2009-1132

CVE-2009-1132 is a critical-severity vulnerability in Microsoft Windows Server 2008 with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 27% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 27% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows Server 2008
Published: 2009-09-08
Last modified: 2026-06-16

Description

Heap-based buffer overflow in the Wireless LAN AutoConfig Service (aka Wlansvc) in Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via a malformed wireless frame, aka "Wireless Frame Parsing Remote Code Execution Vulnerability."

Frequently asked questions

What is CVE-2009-1132?: Heap-based buffer overflow in the Wireless LAN AutoConfig Service (aka Wlansvc) in Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 allows remote attackers to execute arbitrary code via a malformed wireless frame, aka "Wireless Frame Parsing Remote Code Execution Vulnerability."
How severe is CVE-2009-1132?: CVE-2009-1132 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2009-1132 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 27% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1132?: CVE-2009-1132 primarily affects Microsoft Windows Server 2008. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1132?: 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-2009-1132 published?: CVE-2009-1132 was published on 2009-09-08 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:o:microsoft:windows_server_2008:-:-:x32:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*

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