Is CVE-2010-0021 in the CISA KEV catalog?

No. CVE-2010-0021 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2010-0021?

CVE-2010-0021 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2010-0021?

CVE-2010-0021 has an EPSS score of 14.27% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2010-0021

MEDIUMEPSS 96th pctl

5.9

CVSS v3

NVD

Description

Multiple race conditions in the SMB implementation in the Server service in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allow remote attackers to cause a denial of service (system hang) via a crafted (1) SMBv1 or (2) SMBv2 Negotiate packet, aka "SMB Memory Corruption Vulnerability."

CWE-362Race Condition

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

14.27%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% 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 2026-04-29.