Is CVE-2009-1544 in the CISA KEV catalog?

No. CVE-2009-1544 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-1544?

CVE-2009-1544 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2009-1544?

CVE-2009-1544 has an EPSS score of 20.64% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2009-1544

HIGHEPSS 97th pctl

8.8

CVSS v3

NVD

Description

Double free vulnerability in the Workstation service in Microsoft Windows allows remote authenticated users to gain privileges via a crafted RPC message to a Windows XP SP2 or SP3 or Server 2003 SP2 system, or cause a denial of service via a crafted RPC message to a Vista Gold, SP1, or SP2 or Server 2008 Gold or SP2 system, aka "Workstation Service Memory Corruption Vulnerability."

CWE-399 CWE-415

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

20.64%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% 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.