Multiple race conditions in the SMB implementation in the Server service in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008…

published 2010-02-10 16y ago modified 2026-06-16 4mo ago also EUVD-2010-0053

cvss: 5.9; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 13.4%; EPSS 13.4% chance of exploitation in 30 days, percentile 96%
public exploits: 0; none known

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."

Is CVE-2010-0021 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-01-21)

Exploit prediction

13.43% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA	3.1	5.9	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	7.1	AV:N/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2010/ms10-012
vendor-advisory
us-cert.gov /cas/techalerts/TA10-040A.html
third-party-advisory, us-government-resource
oval.cisecurity.org /repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8524
vdb-entry, signature

Sources

CVE List CVE-2010-0021
NVD CVE-2010-0021

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.