CVE-2011-0661

The SMB Server service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1…

published April 13, 2011

CVSS
—
EPSS
45%
Percentile
98.8
In the wild
Unconfirmed
What it is

⚠️ A sneaky malformed request could let attackers pull off arbitrary code execution on multiple Windows versions, from XP to Windows 7! Think of it like an untrained barista who messes up orders – if they don't double-check the request, they might accidentally brew up a chaotic concoction instead of that perfect latte. Here, the SMB server is the barista, and those malformed packets are the mixed-up orders! If exploited, attackers could take control of your system, potentially altering files, stealing sensitive data, or even installing malware. It's like giving a thief the keys to your house – they could do just about anything while you're none the wiser!

Put simply

Think of it like an untrained barista who messes up orders – if they don't double-check the request, they might accidentally brew up a chaotic concoction instead of that perfect latte. Here, the SMB server is the barista, and those malformed packets are the mixed-up orders! The vulnerability arises because the SMB Server service fails to properly validate fields in SMB requests, allowing attackers to send malformed packets that can execute arbitrary code. This affects systems running various versions of Microsoft Windows, including legacy systems like XP and newer ones like Windows 7.

What to do

If exploited, attackers could take control of your system, potentially altering files, stealing sensitive data, or even installing malware. It's like giving a thief the keys to your house – they could do just about anything while you're none the wiser! To protect against this vulnerability, ensure your systems are updated to the latest service packs or security patches. Consider disabling SMBv1 if it’s not needed and enhance your security perimeter to filter out suspicious SMB traffic. It’s a good idea to conduct a security audit as well! You've got this! With a few updates and some diligence, you can keep your systems secure! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.44581 · 98.8th percentile
Published
2011-04-13T18:00Z
EPSS history
Timeline
  • 13 APR 18:00Z
    The SMB Server service in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1…
    cvelistv5