CVE-2018-0833: microsoft corporation server message block NULL Pointer Dereference
Vulnerability summary
CVE-2018-0833 is a medium (CVSS 6.3) NULL Pointer Dereference vulnerability in microsoft corporation server message block. EPSS estimates a 39.90% chance of exploitation in the next 30 days, higher than 98.6% of scored vulnerabilities. 2 public exploits are recorded.
Timeline
- 15-02-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
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".
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
39.90%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 39.90% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundCve In Ruby
Maturity: poc
Microsoft Windows 8.1/2012 R2 - SMBv3 Null Pointer Dereference Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Microsoft3 products
Microsoft corporation1 product
- server message blockWindows 8.1 and RT 8.1 and Windows Server 2012 R2
2 vendors · 4 products
References
5 links
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0833X Refsource CONFIRMPatchVendor Advisory- github.com/KINGSABRI/CVE-in-Ruby/tree/master/CVE-2018-0833X Refsource MISCExploitThird Party Advisory