How severe is CVE-2010-2561?

CVE-2010-2561 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2010-2561 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-2561?

CVE-2010-2561 affects Microsoft Xml Core Services. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-2561?

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-2010-2561 published?

CVE-2010-2561 was published on 2010-08-11 and last updated on 2026-06-16.

CVE-2010-2561

CVE-2010-2561 is a critical-severity vulnerability in Microsoft Xml Core Services with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 25% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 25% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Microsoft Xml Core Services
Published: 2010-08-11
Last modified: 2026-06-16

Description

Microsoft XML Core Services (aka MSXML) 3.0 does not properly handle HTTP responses, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted response, aka "Msxml2.XMLHTTP.3.0 Response Handling Memory Corruption Vulnerability."

Frequently asked questions

What is CVE-2010-2561?: Microsoft XML Core Services (aka MSXML) 3.0 does not properly handle HTTP responses, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted response, aka "Msxml2.XMLHTTP.3.0 Response Handling Memory Corruption Vulnerability."
How severe is CVE-2010-2561?: CVE-2010-2561 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2010-2561 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 25% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-2561?: CVE-2010-2561 affects Microsoft Xml Core Services. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-2561?: 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-2010-2561 published?: CVE-2010-2561 was published on 2010-08-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:microsoft:xml_core_services:3.0:*:*:*:*:*:*:*

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