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CVE-2026-67390· NVD / CVE Program· CNA microsoft

Microsoft SQL Server Information Disclosure Vulnerability

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.99% (FIRST EPSS); higher than 61.9% of all records.
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Microsoft SQL Server 2017 for x64-based Systems (CU 31) 14.0.3550.4; Microsoft SQL Server 2017 for x64-based Systems (GDR) 14.0.2130.4; Microsoft SQL Server 2019 for x64-based Systems (CU 32) 15.0.4490.9.

Low priority for now. Upgrade to Microsoft SQL Server 2017 for x64-based Systems (CU 31) 14.0.3550.4; Microsoft SQL Server 2017 for x64-based Systems (GDR) 14.0.2130.4; Microsoft SQL Server 2019 for x64-based Systems (CU 32) 15.0.4490.9 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Buffer over-read in SQL Server allows an authorized attacker to disclose information over a network.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Sep 8, 2026
Updated
Oct 8, 2026
EPSS
0.9% · 61th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · microsoft
6.5
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-67390

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
microsoftsql server 2017
microsoftsql server 2019
microsoftsql server 2022
microsoftsql server 2025

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • microsoft sql server 2017before 14.0.2130.4
  • microsoft sql server 201714.0.3006.16 and later · before 14.0.3550.4
  • microsoft sql server 2019before 15.0.2190.7
  • microsoft sql server 201915.0.4003.23 and later · before 15.0.4490.9
  • microsoft sql server 2022before 16.0.1200.5
  • microsoft sql server 202216.0.4003.1 and later · before 16.0.4275.2
  • microsoft sql server 2025before 17.0.1135.8
  • microsoft sql server 202517.0.4006.2 and later · before 17.0.4085.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

  • Microsoft Microsoft SQL Server 2017 (CU 31)

    • 14.0.0 and later · before 14.0.3550.4affected

  • Microsoft Microsoft SQL Server 2017 (GDR)

    • 14.0.0 and later · before 14.0.2130.4affected

  • Microsoft Microsoft SQL Server 2019 (CU 32)

    • 15.0.0.0 and later · before 15.0.4490.9affected

  • Microsoft Microsoft SQL Server 2019 (GDR)

    • 15.0.0 and later · before 15.0.2190.7affected

  • Microsoft Microsoft SQL Server 2022 (CU 26)

    • 16.0.0.0 and later · before 16.0.4275.2affected

  • Microsoft Microsoft SQL Server 2022 (GDR)

    • 16.0.0 and later · before 16.0.1200.5affected

  • Microsoft Microsoft SQL Server 2025 (CU8)

    • 17.0.0.0 and later · before 17.0.4085.5affected

  • Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR)

    • 17.0.1050.2 and later · before 17.0.1135.8affected

Same product

microsoft: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-67631Microsoft SQL Server Remote Code Execution Vulnerability
    39Monitor
  • CVE-2026-78442Windows OLE DB Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-77487SQL Server Elevation of Privilege Vulnerability
    35Monitor
  • CVE-2026-77486Microsoft SQL Server Remote Code Execution Vulnerability
    35Monitor
  • CVE-2026-77483SQL Server Elevation of Privilege Vulnerability
    35Monitor
  • CVE-2026-77482Microsoft SQL Server Remote Code Execution Vulnerability
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Microsoft SQL Server 2017 for x64-based Systems (CU 31)14.0.3550.4 · KB5122774Microsoft (MSRC)
Microsoft SQL Server 2017 for x64-based Systems (GDR)14.0.2130.4 · KB5122775Microsoft (MSRC)
Microsoft SQL Server 2019 for x64-based Systems (CU 32)15.0.4490.9 · KB5122772Microsoft (MSRC)
Microsoft SQL Server 2019 for x64-based Systems (GDR)15.0.2190.7 · KB5122773Microsoft (MSRC)
Microsoft SQL Server 2022 for x64-based Systems (CU 26)16.0.4275.2 · KB5122768Microsoft (MSRC)
Microsoft SQL Server 2022 for x64-based Systems (GDR)16.0.1200.5 · KB5122771Microsoft (MSRC)
Microsoft SQL Server 2025 for x64-based Systems (CU8)17.0.4085.5 · KB5122769Microsoft (MSRC)
Microsoft SQL Server 2025 for x64-based Systems (GDR)17.0.1135.8 · KB5122770Microsoft (MSRC)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-673930 days apartMicrosoft SQL Server Information Disclosure Vulnerability
    26Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-126 · Buffer Over-read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records