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CVE-2026-88084

Microsoft SQL Server Denial of Service Vulnerability

CVSS score

5.3

EPSS probability

—

Risk score

0.5

Published

14 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

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Vulnerability description

CVE AI research

The stored explanation is shown at once; refreshing evaluates the sources again.

DayBreach AI Explanation

Verified against sources

CVE-2026-88084 Microsoft SQL Server Denial of Service Vulnerability

Sources read

2

Source agreement

0/2

Evidence confidence

%55

Short explanation

Allocation of resources without limits or throttling in Microsoft SQL Server allows an authorized attacker to conduct a denial of service over a network.

Why does it matter?

This vulnerability enables authorized attackers to target critical database availability, threatening operational service continuity.

What should be done?

  • Follow Microsoft security advisories
  • Review provided patch references
Note on uncertainty

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Chain of evidence and sources2 verified claims

Microsoft SQL Server, sınırsız veya kısıtlamasız kaynak tahsisi nedeniyle servis dışı bırakma zafiyeti içermektedir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Yetkili bir saldırgan bu zafiyeti ağ üzerinden istismar ederek servis dışı bırakmaya neden olabilir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd
Show the technical text from the sources

Allocation of resources without limits or throttling in SQL Server allows an authorized attacker to deny service over a network.

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

CWE: CWE-770

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-88084 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1microsoftMicrosoft SQL Server 2019 (GDR) View
2microsoftMicrosoft SQL Server 2019 for x64-based Systems (CU32) View
3microsoftMicrosoft SQL Server 2025 (CU8) View
Total affected vendors: 1|Products: 3

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
5.3CVSS V31MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HNVD
5.3CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:CCVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

Microsoft SQL Server Denial of Service Vulnerability

Open source
reference

Microsoft SQL Server Denial of Service Vulnerability

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-88084 is associated with the following CWEs:

CWE-770: Allocation of Resources Without Limits or Throttling

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-88084 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
UserGerekmiyor

Official Sources and Advisories

Microsoft SQL Server Denial of Service Vulnerabilitypatch

CVSS Vector Radar Chart

5.3 / 10
Attack VectorNetworkComplexityHighPrivilegesLowUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredLow privileges
User InteractionNone required
Confidentiality (Gizlilik)High
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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Weakness Type (CWE & CAPEC)

CWE-770

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CVE-2026-88084 · Microsoft SQL Server Denial of Service Vulnerability · DayBreach