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CVE-2026-85886

Microsoft SQL Server Remote Code Execution Vulnerability

CVSS score

8.5

EPSS probability

%0.4

Risk score

0.0

Published

5 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Microsoft SQL Server Remote Code Execution Vulnerability in CVE-2026-85886

Sources read

2

Source agreement

0/2

Evidence confidence

%55

Short explanation

A heap-based buffer overflow vulnerability in Microsoft SQL Server allows an authorized attacker to execute code over a network.

Why does it matter?

When successfully exploited, this flaw can cause high impact on confidentiality, integrity, and availability. However, it is not listed under active exploitation in CISA KEV.

What should be done?

  • Follow Microsoft security advisories
  • Review the provided patch references
  • Update affected product versions
Note on uncertainty

1 alanda kaynak uyuşmazlığı var. DayBreach bu değerleri saklamadı; kaynak karşılaştırması aşağıda gösteriliyor.

Chain of evidence and sources2 verified claims

Microsoft SQL Server içindeki yığın tabanlı arabellek taşması, yetkili bir saldırganın ağ üzerinden kod çalıştırmasına izin verir.

S0 · daybreach-canonicalS1 · cvelistS2 · nvd

Zafiyet için CVSS taban puanı 8.5 olarak değerlendirilmiştir ve yama durumu mevcuttur.

S0 · daybreach-canonical
Show the technical text from the sources

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

CVSS vector: 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

CWE: CWE-122

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-2026-85886 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1microsoftMicrosoft SQL Server 2017 (GDR) View
2microsoftMicrosoft SQL Server 2017 for x64-based Systems (CU31) View
3microsoftMicrosoft SQL Server 2019 (GDR) View
4microsoftMicrosoft SQL Server 2019 for x64-based Systems (CU32) View
5microsoftMicrosoft SQL Server 2022 (GDR) View
6microsoftMicrosoft SQL Server 2022 for x64-based Systems (CU27) View
7microsoftMicrosoft SQL Server 2025 for x64-based Systems (CU9) View
8microsoftMicrosoft SQL Server 2025 for x64-based Systems (GDR) View
Total affected vendors: 1|Products: 8

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
8.5CVSS V31HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:HNVD
8.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/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 Remote Code Execution Vulnerability

Open source
reference

Microsoft SQL Server Remote Code Execution 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-2026-85886 is associated with the following CWEs:

CWE-122: Common Weakness Enumeration Entry CWE-122

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-2026-85886 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 Remote Code Execution Vulnerabilitypatch

CVSS Vector Radar Chart

8.5 / 10
Attack VectorNetworkComplexityHighPrivilegesLowUser Interact.NoneConfidentialityHighIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

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
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-122

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