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Fencer Intel
high 8.5

CVE-2026-68883 json

Microsoft SQL Server Elevation of Privilege Vulnerability

published 27d ago modified 7d ago also EUVD-2026-100709

cvss
8.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

Heap-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network.

Patch / fix

  • Microsoft Microsoft SQL Server 2017 (GDR) 14.0.2140.2
  • Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31) 14.0.3560.2
  • Microsoft Microsoft SQL Server 2019 (GDR) 15.0.2200.2
  • Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32) 15.0.4500.2
  • Microsoft Microsoft SQL Server 2022 (GDR) 16.0.1210.3
  • Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27) 16.0.4305.5
  • Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9) 17.0.5015.4
  • Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1145.4

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CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
25d ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Microsoft Microsoft SQL Server 2017 (GDR)
  • Microsoft Microsoft SQL Server 2017 for x64-based Systems (CU31)
  • Microsoft Microsoft SQL Server 2019 (GDR)
  • Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32)
  • Microsoft Microsoft SQL Server 2022 (GDR)
  • Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27)
  • Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9)
  • Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR)

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
Technology feeds

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.