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Fencer Intel
critical 10.0

CVE-2010-0270 in the critical feed json

The SMB client in Microsoft Windows Server 2008 R2 and Windows 7 does not properly validate fields in SMB transaction responses, which allo…

published 16y ago modified 4mo ago also EUVD-2010-0301

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
48.2%
EPSS 48.2% 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 validate fields in SMB transaction responses, which allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted (1) SMBv1 or (2) SMBv2 response, aka "SMB Client Transaction Vulnerability."

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Timeline

  1. Published
  2. First public exploit (EDB-12273)

Exploit prediction

48.19% 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-20 Improper Input Validation

References

Sources

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.