Microsoft SMBv1 Remote Code Execution Vulnerability
Microsoft · SMBv1
CVSS 8.8
EPSS 90%
4 public exploits
ransomware
Fix deadline passed 10 August 2022
What it is
The SMBv1 server in multiple Microsoft Windows versions allows remote attackers to execute arbitrary code via crafted packets.
Why we say that
- Linked by CISA to known ransomware campaigns
- EPSS puts exploitation in the next 30 days at 90%
- 4 public exploits published
- CISA's federal remediation deadline (2022-08-10) has passed
- Listed in the CISA Known Exploited Vulnerabilities catalogue
Every line above comes from a named public source. Where the evidence is thin, we say so rather than inventing confidence — see methodology.
What to do
Apply updates per vendor instructions.
Public exploit code
Indexed from Exploit-DB. Presence of code raises urgency; absence does not mean safety.
- DOUBLEPULSAR - Payload Execution and Neutralization (Metasploit)
- DOUBLEPULSAR - Payload Execution and Neutralization (Metasploit)
- Microsoft Windows Server 2008 R2 (x64) - 'SrvOs2FeaToNt' SMB Remote Code Execution (MS17-010)
- Microsoft Windows - SMB Remote Code Execution Scanner (MS17-010) (Metasploit)
What it costs when this goes wrong
This is where UK enforcement meets the vulnerability record. This vulnerability is used in ransomware campaigns; here is what ransomware has cost UK organisations at the regulator.
- Advanced Computer Software Group Limited The Information Commissioner’s Office (ICO) has fined Advanced Computer Software Group Ltd (Advanced) £3.07m for security failings…
- Optionis Group Limited The data controller suffered a ransomware attack, which resulted in the exfiltration of personal data. A reprimand was issued in r…