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Full vulnerability report · 2023
CVE-2023-21705High confidence

Microsoft SQL Server Remote Code Execution Vulnerability

Microsoft · Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE)

Official source article: Siemens SSA-556635 ↗. Check the applicable product and release in the original source.

8.8HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 1.11% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Microsoft Microsoft SQL Server 2012 for x64-based Systems Service Pack 4 (QFE) and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
SSA-556635 · CSAF 2.0 · revision 1 · interimSiemens ProductCERTSSA-556635: Multiple Vulnerabilities in Telecontrol Server Basic before V3.1.2.0
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • TeleControl Server Basic V3
Summary
Microsoft SQL Server Remote Code Execution Vulnerability
Remediation
Update to V3.1.2 or later version
Optional official sources

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

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

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-2023-25872

No EUVD known-exploited evidence

Microsoft SQL Server Remote Code Execution Vulnerability

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 actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Microsoft SQL Server Remote Code Execution Vulnerability

What

Microsoft SQL Server Remote Code Execution Vulnerability

Why

The product uses a hard-coded, unchangeable cryptographic key.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

Microsoft SQL Server Remote Code Execution Vulnerability

Why

The product uses a hard-coded, unchangeable cryptographic key.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

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 → Use of Hard-coded Cryptographic Key → execute code or commands in the affected security context
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-321 ↗

CWE-321: Use of Hard-coded Cryptographic Key. The product uses a hard-coded, unchangeable cryptographic key.

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/E:U/RL:O/RC:C

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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkRemote code executionCWE-321
A

Official authority intelligence

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

ENISA EUVD · EUVD-2023-25872Official EUVD mapping

Microsoft SQL Server Remote Code Execution Vulnerability

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20230215Security Bulletin 15 Feb 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 15 Feb 2023, published on 15 February 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-0133Multiples vulnérabilités dans les produits Microsoft

février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21570 Bulletin de sécurité Microsoft CVE-2023-21571 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21571 Bulletin de sécurité Microsoft CVE-2023-21572 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21572 Bulletin de sécurité Microsoft CVE-2023-21573 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21573 Bulletin de sécurité Microsoft CVE-2023-21704 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21704 Bulletin de sécurité Microsoft CVE-2023-21705 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21705 Bulletin de sécurité Microsoft CVE-2023-21706 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21706 Bulletin de sécurité Microsoft CVE-2023-21707 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21707 Bulletin de sécurité Microsoft CVE-2023-21710 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21710 Bulletin de sécurité Microsoft CVE-2023-21713 du 14 février 2023 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21713 Bulletin de sécurité Micr

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-001283Microsoft SQL Server におけるリモートでコードを実行される脆弱性

Microsoft SQL Server には、リモートでコードを実行される脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5870MS 2월 보안 위협에 따른 정기 보안 업데이트 권고

점 SQL Server CVE-2023-21718 Microsoft SQL ODBC 드라이버 원격 코드 실행 취약점 Microsoft Office SharePoint CVE-2023-21717 Microsoft SharePoint Server 권한 상승 취약점 Microsoft Office Word CVE-2023-21716 Microsoft Word 원격 코드 실행 취약점 Microsoft Office Publisher CVE-2023-21715 Microsoft 게시자 보안 기능 우회 취약점 Microsoft Office CVE-2023-21714 Microsoft Office 정보 공개 취약점 SQL Server CVE-2023-21713 Microsoft SQL Server 원격 코드 실행 취약점 Microsoft Exchange Server CVE-2023-21710 Microsoft Exchange Server 원격 코드 실행 취약점 Microsoft Exchange Server CVE-2023-21707 Microsoft Exchange Server 원격 코드 실행 취약점 Microsoft Exchange Server CVE-2023-21706 Microsoft Exchange Server 원격 코드 실행 취약점 SQL Server CVE-2023-21705 Microsoft SQL Server 원격 코드 실행 취약점 SQL Server CVE-2023-21704 SQL Server용 Microsoft ODBC 드라이버 원격 코드 실행 취약점 Azure Data Box Gateway CVE-2023-21703 Azure Data Box Gateway 원격 코드 실행 취약점 Windows iSCSI CVE-2023-21702 Windows iSCSI 서비스 서비스 거부 취약점 Windows Protected EAP (PEAP) CVE-2023-21701 Microsoft PEAP(Protected Extensible Authentication Protocol) 서비스 거부 취약점 Windows iSCSI CVE-2023-21700 Windows iSCSI 검색 서비스 서비스 거부 취약점 Internet Storage Name Service CVE-2023-21699 Windows iSNS(Internet Storage Name Service) 서버 정보 노출 취약점 Internet Storage Name Service CVE-2023-21697 Windows iSNS(Internet Storage Name Service) 서버 정보 노출 취약점 Windows Protected EAP (PEAP) CV

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.
Fix availability varies by product
Affected
TeleControl Server Basic V3
Fixed
Update to V3.1.2 or later version
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
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 Feb 2023 · Last source change 19 Aug 2026, 16:26 UTC · CWE-321 · Use of Hard-coded Cryptographic Key

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-2023-25872
Product sourceVendor CSAF · Siemens ProductCERT
Remediation sourceVendor CSAF · Siemens ProductCERT
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 ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    11.0.0 < 11.0.7512.11; 14.0.0 < 14.0.2047.8; 12.0.0 < 12.0.6444.4; 12.0.0 < 12.0.6174.8; 15.0.0 < 15.0.2101.7; 13.0.0 < 13.0.6430.49; 13.0.0 < 13.0.7024.30 · 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.
    After
    11.0.0 < 11.0.7512.11; 12.0.0 < 12.0.6174.8; 12.0.0 < 12.0.6444.4; 13.0.0 < 13.0.6430.49; 13.0.0 < 13.0.7024.30; 14.0.0 < 14.0.3460.9; 14.0.0 < 14.0.2047.8 · 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.
    CNA ↗
  2. Affected versionsThe structured affected or fixed version information changed.
    Before
    11.0.0 < 11.0.7512.11; 12.0.0 < 12.0.6174.8; 12.0.0 < 12.0.6444.4; 13.0.0 < 13.0.6430.49; 13.0.0 < 13.0.7024.30; 14.0.0 < 14.0.3460.9; 14.0.0 < 14.0.2047.8 · 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.
    After
    11.0.0 < 11.0.7512.11; 12.0.0 < 12.0.6174.8; 12.0.0 < 12.0.6444.4; 13.0.0 < 13.0.6430.49; 13.0.0 < 13.0.7024.30; 14.0.0 < 14.0.3460.9; 14.0.0 < 14.0.2047.8 · Fixed: Update to V3.1.2 or later version
    Siemens ProductCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2023-25872↗Siemens ProductCERT security advisory · Siemens SSA-556635↗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-2023-21705 · cve.blacktree.nl