Is CVE-2007-0099 in the CISA KEV catalog?

No. CVE-2007-0099 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-0099?

CVE-2007-0099 has a CVSS v2 base score of 9.3 (HIGH).

What is the EPSS score for CVE-2007-0099?

CVE-2007-0099 has an EPSS score of 24.89% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2007-0099

HIGHEPSS 98th pctl

9.3

CVSS v2

NVD

Description

Race condition in the msxml3 module in Microsoft XML Core Services 3.0, as used in Internet Explorer 6 and other applications, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via many nested tags in an XML document in an IFRAME, when synchronous document rendering is frequently disrupted with asynchronous events, as demonstrated using a JavaScript timer, which can trigger NULL pointer dereferences or memory corruption, aka "MSXML Memory Corruption Vulnerability."

CWE-362Race Condition

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

24.89%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.