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Fencer Intel
medium 5.5

CVE-2018-8527 json

An information disclosure vulnerability exists in Microsoft SQL Server Management Studio (SSMS) when parsing a malicious XEL file containin…

published 2018-10-10 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20151

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
23.4%
EPSS 23.4% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

An information disclosure vulnerability exists in Microsoft SQL Server Management Studio (SSMS) when parsing a malicious XEL file containing a reference to an external entity, aka "SQL Server Management Studio Information Disclosure Vulnerability." This affects SQL Server Management Studio 17.9, SQL Server Management Studio 18.0. This CVE ID is unique from CVE-2018-8532, CVE-2018-8533.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-45585)

Exploit prediction

23.37% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-45585 Microsoft SQL Server Management Studio 17.9 - '.xel' XML External Entity Injection local, 2018-10-11

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Microsoft SQL Server Management Studio 17.9
  • Microsoft SQL Server Management Studio 18.0

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.