Buffer overflow in Microsoft SQL Server

CVE-2018-8273

A buffer overflow vulnerability exists in the Microsoft SQL Server that could allow remote code execution on an affected system, aka "Microsoft SQL Server Remote Code Execution Vulnerability." This affects Microsoft SQL Server.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.294 (98.2th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2018-8273: held from 0.292 to 0.294.

EPSS over last 30 days · oldest: 0.292 · newest: 0.294 · change: +0.002

Affected products

  • Microsoft SQL Server — versions 2016 for x64-based Systems Service Pack 1, 2016 for x64-based Systems Service Pack 1 (CU), 2016 for x64-based Systems Service Pack 2
  • Microsoft SQL Server — versions 2016, 2017

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2018-8273?
CVE-2018-8273 is a critical-severity vulnerability in Microsoft SQL Server, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-08-15.
How severe is CVE-2018-8273?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-8273 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.