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CVE-2026-96956: microsoft microsoft sql server 2017 for x64-based systems (cu31) Stack-based Buffer Overflow

CVSS: 8.0v3.1HighAwaiting analysis
Published 13-10-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-96956 is a high (CVSS 8.0) Stack-based Buffer Overflow vulnerability in microsoft microsoft sql server 2017 for x64-based systems (cu31). EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 35.1% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.0/10
010
High · v3.1 (CVE.org)
EPSS score
0.42%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.42%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202619-10-2026
EPSS score
0.42%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft8 products

1 vendor · 8 products

References

1 links