CVE-2010-0477 in the critical feed json
The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which a…
published 2010-04-14 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-0508
- cvss
- 10.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 50.2%
- EPSS 50.2% chance of exploitation in 30 days, percentile 98%
- public exploits
- 1
- Exploit-DB
Summary
The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly handle (1) SMBv1 and (2) SMBv2 response packets, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code via a crafted packet that causes the client to read the entirety of the response, and then improperly interact with the Winsock Kernel (WSK), aka "SMB Client Message Size Vulnerability."
Timeline
- Published
- First public exploit (EDB-12273)
Exploit prediction
50.19% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- EDB-12273 Microsoft Windows 7/2008 R2 - SMB Client Trans2 Stack Overflow (MS10-020) (PoC) dos, 2010-04-17
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-399 Resource Management Errors
References
-
docs.microsoft.com
/en-us/security-updates/securitybulletins/2010/ms10-020
vendor-advisory
-
secunia.com
/advisories/39372
third-party-advisory
-
us-cert.gov
/cas/techalerts/TA10-103A.html
third-party-advisory, us-government-resource
-
oval.cisecurity.org
/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6859
vdb-entry, signature
Sources
- CVE List CVE-2010-0477
- NVD CVE-2010-0477
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.