CVE-2018-0833

high-risk
Published 2018-02-15

The Microsoft Server Message Block 2.0 and 3.0 (SMBv2/SMBv3) client in Windows 8.1 and RT 8.1 and Windows Server 2012 R2 allows a denial of service vulnerability due to how specially crafted requests are handled, aka "SMBv2/SMBv3 Null Dereference Denial of Service Vulnerability".

Do I need to act?

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74.5% chance of exploitation in next 30 days
EPSS score — higher than 25% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
44189
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / HIGH complexity

Affected Products (3)

Affected Vendors

Microsoft

References (10)

Third Party Advisory http://www.securityfocus.com/bid/102924
Third Party Advisory http://www.securitytracker.com/id/1040375
Exploit https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833
Exploit https://www.exploit-db.com/exploits/44189/
Third Party Advisory http://www.securityfocus.com/bid/102924
Third Party Advisory http://www.securitytracker.com/id/1040375
Exploit https://github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833
Exploit https://www.exploit-db.com/exploits/44189/
52
/ 100
high-risk
Severity 17/34 · Moderate
Exploitability 26/34 · High
Exposure 9/34 · Low