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CVE-2010-0477

66
FAUCET Score

CVE-2010-0477 is a critical vulnerability affecting the SMB client in Microsoft Windows Server 2008 R2 and Windows 7. It allows remote SMB servers or man-in-the-middle attackers to execute arbitrary code by sending crafted SMBv1 or SMBv2 response packets that cause improper interaction with the Winsock Kernel. This vulnerability has a CVSS score of 10.0, indicating a severe risk with network accessibility, low attack complexity, and complete compromise of confidentiality, integrity, and availability. While not listed on CISA KEV, a Proof-of-Concept exploit is publicly available on ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
50.19%
Probability of exploitation in next 30 days
EPSS Percentile
98.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-12273 · Apr 17, 2010
This CVE's current EPSS score of 0.5019 is in the 98th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.microsoft.com / en-us/security-updates/securitybulletins/2010/ms10-020
secunia.com / advisories/39372
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6859
us-cert.gov / cas/techalerts/TA10-103A.html
US Government Resource