Is CVE-2026-26115 in the CISA KEV catalog?

No. CVE-2026-26115 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-26115?

CVE-2026-26115 has a CVSS v3 base score of 8.8 (Important).

What is the EPSS score for CVE-2026-26115?

CVE-2026-26115 has an EPSS score of 1.09% (62th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-26115?

Install KB5077474 for Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR). Fixes are available for 10 affected products.

CVE & CISA-KEV Catalog

CVE-2026-26115

HIGH

8.8

CVSS v3

NVD

Description

Improper validation of specified type of input in SQL Server allows an authorized attacker to elevate privileges over a network.

CWE-1287Improper Validation of Specified Type of Input

How to fix

Remediation Available

Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 (GDR)Microsoft

Install:KB5077474Microsoft

Microsoft SQL Server 2016 for x64-based Systems Service Pack 3 Azure Connect Feature PackMicrosoft

Install:KB5077473Microsoft

Microsoft SQL Server 2017 for x64-based Systems (CU 31)Microsoft

Install:KB5077471Microsoft

Microsoft SQL Server 2017 for x64-based Systems (GDR)Microsoft

Install:KB5077472Microsoft

Microsoft SQL Server 2019 for x64-based Systems (CU 32)Microsoft

Install:KB5077469Microsoft

Microsoft SQL Server 2019 for x64-based Systems (GDR)Microsoft

Install:KB5077470Microsoft

Microsoft SQL Server 2022 for x64-based Systems (CU 23)Microsoft

Install:KB5077464Microsoft

Microsoft SQL Server 2022 for x64-based Systems (GDR)Microsoft

Install:KB5077465Microsoft

Microsoft SQL Server 2025 for x64-based Systems (CU2)Microsoft

Install:KB5077466Microsoft

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

Install:KB5077468Microsoft

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.09%probability of exploitation in 30 days

62ndpercentile

Moderate risk: more likely to be exploited than 62% of all known CVEs.

References

Vendor Advisory1

msrc.microsoft.com

Related Vulnerabilities

Other CWE-1287 (Improper Validation of Specified Type of Input) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4879	Critical	9.8	100%	KEV	-
CVE-2022-31007	Medium	4.9	26%	-	Fix
CVE-2024-6298	Critical	10.0	19%	-	-
CVE-2026-25639	High	7.5	2.5%	-	Fix
CVE-2021-43802	Critical	9.9	2.0%	-	Fix
CVE-2024-51550	Critical	10.0	1.8%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-13.