Is CVE-2007-2903 in the CISA KEV catalog?

No. CVE-2007-2903 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-2903?

CVE-2007-2903 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2007-2903?

CVE-2007-2903 has an EPSS score of 28.51% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2007-2903

MEDIUMEPSS 98th pctl

5.0

CVSS v2

NVD

Description

Buffer overflow in the HelpPopup method in the Microsoft Office 2000 Controllo UA di Microsoft Office ActiveX control (OUACTRL.OCX) 1.0.1.9 allows remote attackers to cause a denial of service (probably winhlp32.exe crash) via a long first argument. NOTE: it is not clear whether this issue crosses privilege boundaries.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

28.51%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.