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Full vulnerability report · 2026
CVE-2026-55002High confidence

Microsoft SQL Server Elevation of Privilege Vulnerability

Microsoft · Microsoft SQL Server 2016 Service Pack 3 (GDR)

8.8HighCVSS 3.1
Recommended action
Within 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Select the national-authority views to include. The exact source language is shown on each matched advisory. Your choice is remembered on this device and encoded in the shareable URL.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-44033

No EUVD known-exploited evidence

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
8.8 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

High technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

What

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

Why

The product allows user input to control or influence paths or file names that are used in filesystem operations.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

What

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

Why

The product allows user input to control or influence paths or file names that are used in filesystem operations.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may gain additional privileges.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → External Control of File Name or Path → gain additional privileges
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-73 ↗

CWE-73: External Control of File Name or Path. The product allows user input to control or influence paths or file names that are used in filesystem operations.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkPrivilege escalationCWE-73
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-44033Official EUVD mapping

External control of file name or path in SQL Server allows an authorized attacker to elevate privileges over a network.

Official EUVD record ↗
BSI · German · WID-SEC-2026-2327Microsoft SQL Server und Power BI: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Microsoft SQL Server und Microsoft Power BI ausnutzen, um seine Privilegien zu erhöhen, um beliebigen Programmcode auszuführen, um falsche Informationen darzustellen, und um Informationen offenzulegen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0872Multiples vulnérabilités dans les produits Microsoft

CVE-2026-50651 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-50657 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-50658 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-50659 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-50663 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-54108 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-54116 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-54117 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-54118 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-54118 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55002 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55005 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55006 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55008 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55009 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55011 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55012 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55016 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55019 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55020 du 14 juillet 2026 Bulletin de sécurité Microsoft CVE-2026-55021

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0871Multiples vulnérabilités dans Microsoft Azure

De multiples vulnérabilités ont été découvertes dans Microsoft Azure. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une élévation de privilèges et un déni de service à distance.

Official advisory ↗
CSIRT Italia · Italian · aggiornamenti-mensili-microsoft-22Aggiornamenti Mensili Microsoft

nuova finestra - - CVE-2026-55019 : apre una nuova finestra - - CVE-2026-55018 : apre una nuova finestra - - CVE-2026-55017 : apre una nuova finestra - - CVE-2026-55016 : apre una nuova finestra - - CVE-2026-55014 : apre una nuova finestra - - CVE-2026-55012 : apre una nuova finestra - - CVE-2026-55011 : apre una nuova finestra - - CVE-2026-55010 : apre una nuova finestra - - CVE-2026-55009 : apre una nuova finestra - - CVE-2026-55008 : apre una nuova finestra - - CVE-2026-55006 : apre una nuova finestra - - CVE-2026-55005 : apre una nuova finestra - - CVE-2026-55004 : apre una nuova finestra - - CVE-2026-55003 : apre una nuova finestra - - CVE-2026-55002 : apre una nuova finestra - - CVE-2026-55001 : apre una nuova finestra - - CVE-2026-55000 : apre una nuova finestra - - CVE-2026-54999 : apre una nuova finestra - - CVE-2026-54998 : apre una nuova finestra - - CVE-2026-54997 : apre una nuova finestra - - CVE-2026-54996 : apre una nuova finestra - - CVE-2026-54995 : apre una nuova finestra - - CVE-2026-54993 : apre una nuova finestra - - CVE-2026-54992 : apre una nuova finestra - - CVE-2026-54991 : apre una nuova finestra - - CVE-2026-54990 : apre una nuova finestra - - CVE-2026-54989 : apre una nuova finestra - - CVE-2026-54988 : apre una nuova finestra - - CVE-2026-54987 : apre una nuova fi

Official advisory ↗
NCSC-NL · Dutch · NCSC-2026-0232Kwetsbaarheden verholpen in Microsoft SQL Server

An external control of file name or path vulnerability in SQL Server allows an authorized attacker to locally elevate privileges by manipulating file paths or names.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
  • Microsoft SQL Server 2016 Service Pack 3 (GDR): 13.0.0 < 13.0.6500.1
  • Microsoft SQL Server 2016 Service Pack 3 Azure Connect Feature Pack: 13.0.0 < 13.0.7095.1
  • Microsoft SQL Server 2017 (CU 31): 14.0.0 < 14.0.3540.1
  • Microsoft SQL Server 2017 (GDR): 14.0.0 < 14.0.2120.1
  • Microsoft SQL Server 2019 (CU 32): 15.0.0.0 < 15.0.4480.2
  • Microsoft SQL Server 2019 (GDR): 15.0.0 < 15.0.2180.2
  • Microsoft SQL Server 2022 (GDR): 16.0.0 < 16.0.1190.2
  • Microsoft SQL Server 2022 for x64-based Systems (CU 25): 16.0.4260.1 < 16.0.4262.2
  • Microsoft SQL Server 2025 (CU 6): 17.0.4060.2 < 17.0.4060.2
  • Microsoft SQL Server 2025 for x64-based Systems (GDR): 17.0.1050.2 < 17.0.1125.2
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory ↗ for the applicable release.
Action
Review the linked authoritative reference and apply the recorded fixed release appropriate to the affected product branch.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 14 Jul 2026 · Last source change 9 Sept 2026, 19:35 UTC · CWE-73 · External Control of File Name or Path

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-44033
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceOther authority
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-44033↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-55002 · cve.blacktree.nl