CVE-2010-0477

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…

published April 14, 2010

Patch now

High probability of exploitation

NVD has not assigned a CVSS score to this record. It sits in the 98.9th percentile for exploit probability.

CVSS
—
EPSS
50%
Percentile
98.9
In the wild
Unconfirmed
What it is

⚠️ A crafty packet can exploit the SMB Client on Windows 7 and Server 2008 R2! This vulnerability lets remote servers and attackers create chaos by sending specially crafted SMB responses. 🔥 Think of the SMB client as a restaurant waiter who misinterprets an order that looks perfectly fine but contains a hidden surprise in the dish. Instead of serving the meal as intended, the waiter ends up spilling all the contents on the floor! If an attacker successfully exploits this vulnerability, they could unleash arbitrary code execution on your system, potentially leading to unauthorized access and control. It’s like opening the door wide for unwelcome guests, letting them run amok in your digital space!

Put simply

Think of the SMB client as a restaurant waiter who misinterprets an order that looks perfectly fine but contains a hidden surprise in the dish. Instead of serving the meal as intended, the waiter ends up spilling all the contents on the floor! The SMB Client Message Size Vulnerability arises from improper handling of SMBv1 and SMBv2 response packets in Windows, allowing crafted packets to execute arbitrary code as the client interacts improperly with the Winsock Kernel (WSK).

What to do

If an attacker successfully exploits this vulnerability, they could unleash arbitrary code execution on your system, potentially leading to unauthorized access and control. It’s like opening the door wide for unwelcome guests, letting them run amok in your digital space! To protect your systems, ensure you apply the latest security patches from Microsoft to mitigate this vulnerability. Regularly audit your SMB configurations and consider disabling SMBv1 where possible to enhance your defense! You've got this! With these actions, you'll strengthen your defenses and keep your systems secure. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.50186 · 98.9th percentile
Published
2010-04-14T15:44Z
EPSS history
Timeline
  • 14 APR 15:44Z
    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…
    cvelistv5