BlackTreeIndependent security intelligence
← Back to the CVE catalogue
Full vulnerability report · 2024
CVE-2023-47746High confidence

IBM Db2 denial of service

IBM · Db2 for Linux, UNIX and Windows

5.3MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

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-2023-51844

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

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
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 could allow an authenticated user with CONNECT privileges to cause a denial of service using a specially crafted query. IBM X-Force ID: 272644.

What

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 could allow an authenticated user with CONNECT privileges to cause a denial of service using a specially crafted query. IBM X-Force ID: 272644.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

What

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 could allow an authenticated user with CONNECT privileges to cause a denial of service using a specially crafted query. IBM X-Force ID: 272644.

Why

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may disrupt the affected service.

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 → Improper Input Validation → disrupt the affected service
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
High: exploitation depends on specific conditions
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-20 ↗

CWE-20: Improper Input Validation. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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:H/PR:L/UI:N/S:U/C:N/I:N/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.ACHighAttack complexity: Successful exploitation depends on specific conditions outside the attacker's direct control.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.CNoneConfidentiality impact: No direct loss is represented by this metric.INoneIntegrity impact: No direct loss is represented by this metric.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.
NetworkDenial of serviceCWE-20
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2024-0022IBM DB2: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen in IBM DB2 ausnutzen, um beliebigen Code auszuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0939Multiples vulnérabilités dans les produits IBM

d?id=CVE-2023-43020 Référence CVE CVE-2023-43642 https://www.cve.org/CVERecord?id=CVE-2023-43642 Référence CVE CVE-2023-45178 https://www.cve.org/CVERecord?id=CVE-2023-45178 Référence CVE CVE-2023-45853 https://www.cve.org/CVERecord?id=CVE-2023-45853 Référence CVE CVE-2023-46167 https://www.cve.org/CVERecord?id=CVE-2023-46167 Référence CVE CVE-2023-47141 https://www.cve.org/CVERecord?id=CVE-2023-47141 Référence CVE CVE-2023-47152 https://www.cve.org/CVERecord?id=CVE-2023-47152 Référence CVE CVE-2023-47158 https://www.cve.org/CVERecord?id=CVE-2023-47158 Référence CVE CVE-2023-47701 https://www.cve.org/CVERecord?id=CVE-2023-47701 Référence CVE CVE-2023-47746 https://www.cve.org/CVERecord?id=CVE-2023-47746 Référence CVE CVE-2023-47747 https://www.cve.org/CVERecord?id=CVE-2023-47747 Référence CVE CVE-2023-50308 https://www.cve.org/CVERecord?id=CVE-2023-50308 Référence CVE CVE-2023-52296 https://www.cve.org/CVERecord?id=CVE-2023-52296 Référence CVE CVE-2024-20918 https://www.cve.org/CVERecord?id=CVE-2024-20918 Référence CVE CVE-2024-20919 https://www.cve.org/CVERecord?id=CVE-2024-20919 Référence CVE CVE-2024-20921 https://www.cve.org/CVERecord?id=CVE-2024-20921 Référence CVE CVE-2024-20926 https://www.cve.org/CVERecord?id=CVE-2024-20926 Référence CVE CVE-2024-20945 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2024-AVI-0145Multiples vulnérabilités dans les produits IBM

d?id=CVE-2023-46234 Référence CVE CVE-2023-46308 https://www.cve.org/CVERecord?id=CVE-2023-46308 Référence CVE CVE-2023-46589 https://www.cve.org/CVERecord?id=CVE-2023-46589 Référence CVE CVE-2023-47141 https://www.cve.org/CVERecord?id=CVE-2023-47141 Référence CVE CVE-2023-47145 https://www.cve.org/CVERecord?id=CVE-2023-47145 Référence CVE CVE-2023-47152 https://www.cve.org/CVERecord?id=CVE-2023-47152 Référence CVE CVE-2023-47158 https://www.cve.org/CVERecord?id=CVE-2023-47158 Référence CVE CVE-2023-47627 https://www.cve.org/CVERecord?id=CVE-2023-47627 Référence CVE CVE-2023-47701 https://www.cve.org/CVERecord?id=CVE-2023-47701 Référence CVE CVE-2023-47746 https://www.cve.org/CVERecord?id=CVE-2023-47746 Référence CVE CVE-2023-47747 https://www.cve.org/CVERecord?id=CVE-2023-47747 Référence CVE CVE-2023-4807 https://www.cve.org/CVERecord?id=CVE-2023-4807 Référence CVE CVE-2023-49081 https://www.cve.org/CVERecord?id=CVE-2023-49081 Référence CVE CVE-2023-49082 https://www.cve.org/CVERecord?id=CVE-2023-49082 Référence CVE CVE-2023-50308 https://www.cve.org/CVERecord?id=CVE-2023-50308 Référence CVE CVE-2023-5363 https://www.cve.org/CVERecord?id=CVE-2023-5363 Référence CVE CVE-2023-5676 https://www.cve.org/CVERecord?id=CVE-2023-5676 Référence CVE CVE-2023-5678 https://www.cve.org/CVERecord?id=CVE-202

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
10.5, 11.1, 11.5
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 22 Jan 2024 · Last source change 13 Feb 2025, 17:18 UTC · CWE-20 · Improper Input Validation

CVE recordCVE.org · 5.1
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-2023-51844
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
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-2023-51844↗CVE authority or vendor reference↗Vendor advisory↗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-2023-47746 · cve.blacktree.nl