How severe is CVE-2011-2008?

CVE-2011-2008 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-2008 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2008?

CVE-2011-2008 primarily affects Microsoft Host Integration Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2008?

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

When was CVE-2011-2008 published?

CVE-2011-2008 was published on 2011-10-12 and last updated on 2026-06-16.

CVE-2011-2008

CVE-2011-2008 is a medium-severity vulnerability in Microsoft Host Integration Server with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Host Integration Server
Published: 2011-10-12
Last modified: 2026-06-16

Description

Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Access of Unallocated Memory DoS Vulnerability."

Frequently asked questions

What is CVE-2011-2008?: Microsoft Host Integration Server (HIS) 2004 SP1, 2006 SP1, 2009, and 2010 allows remote attackers to cause a denial of service (SNA Server service outage) via crafted TCP or UDP traffic, aka "Access of Unallocated Memory DoS Vulnerability."
How severe is CVE-2011-2008?: CVE-2011-2008 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-2008 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2008?: CVE-2011-2008 primarily affects Microsoft Host Integration Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2008?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2008 published?: CVE-2011-2008 was published on 2011-10-12 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:microsoft:host_integration_server:2004:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:host_integration_server:2006:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:host_integration_server:2009:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:host_integration_server:2010:*:*:*:*:*:*:*

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