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Full vulnerability report · 2026
CVE-2025-36009High confidence

IBM Db2 Denial of Service

IBM · Db2 for Linux, UNIX and Windows

6.5MediumCVSS 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.

Fix not verified
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-2025-206552

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.

Fix not verified
01

What, why and how

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to excessive use of a global variable.

What

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow an authenticated user to cause a denial of service due to excessive use of a global variable.

Why

The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

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) could allow an authenticated user to cause a denial of service due to excessive use of a global variable.

Why

The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

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 Validation of Specified Quantity in Input → disrupt the affected service
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-1284 ↗

CWE-1284: Improper Validation of Specified Quantity in Input. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.

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: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.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.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-1284
A

Official authority intelligence

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

BSI · German · WID-SEC-W-2026-0262IBM DB2: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM DB2 ausnutzen, um seine Privilegien zu erhöhen, und um einen Denial of Service Angriff durchzuführen.

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0810Multiples vulnérabilités dans les produits IBM

ecord?id=CVE-2025-15468 Référence CVE CVE-2025-15469 https://www.cve.org/CVERecord?id=CVE-2025-15469 Référence CVE CVE-2025-2534 https://www.cve.org/CVERecord?id=CVE-2025-2534 Référence CVE CVE-2025-2668 https://www.cve.org/CVERecord?id=CVE-2025-2668 Référence CVE CVE-2025-33012 https://www.cve.org/CVERecord?id=CVE-2025-33012 Référence CVE CVE-2025-33134 https://www.cve.org/CVERecord?id=CVE-2025-33134 Référence CVE CVE-2025-36001 https://www.cve.org/CVERecord?id=CVE-2025-36001 Référence CVE CVE-2025-36006 https://www.cve.org/CVERecord?id=CVE-2025-36006 Référence CVE CVE-2025-36008 https://www.cve.org/CVERecord?id=CVE-2025-36008 Référence CVE CVE-2025-36009 https://www.cve.org/CVERecord?id=CVE-2025-36009 Référence CVE CVE-2025-36070 https://www.cve.org/CVERecord?id=CVE-2025-36070 Référence CVE CVE-2025-36098 https://www.cve.org/CVERecord?id=CVE-2025-36098 Référence CVE CVE-2025-36123 https://www.cve.org/CVERecord?id=CVE-2025-36123 Référence CVE CVE-2025-36131 https://www.cve.org/CVERecord?id=CVE-2025-36131 Référence CVE CVE-2025-36136 https://www.cve.org/CVERecord?id=CVE-2025-36136 Référence CVE CVE-2025-36184 https://www.cve.org/CVERecord?id=CVE-2025-36184 Référence CVE CVE-2025-36247 https://www.cve.org/CVERecord?id=CVE-2025-36247 Référence CVE CVE-2025-36353 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0641Multiples vulnérabilités dans les produits IBM

ord?id=CVE-2025-21614 Référence CVE CVE-2025-22227 https://www.cve.org/CVERecord?id=CVE-2025-22227 Référence CVE CVE-2025-2668 https://www.cve.org/CVERecord?id=CVE-2025-2668 Référence CVE CVE-2025-27221 https://www.cve.org/CVERecord?id=CVE-2025-27221 Référence CVE CVE-2025-32988 https://www.cve.org/CVERecord?id=CVE-2025-32988 Référence CVE CVE-2025-32989 https://www.cve.org/CVERecord?id=CVE-2025-32989 Référence CVE CVE-2025-32990 https://www.cve.org/CVERecord?id=CVE-2025-32990 Référence CVE CVE-2025-33042 https://www.cve.org/CVERecord?id=CVE-2025-33042 Référence CVE CVE-2025-36001 https://www.cve.org/CVERecord?id=CVE-2025-36001 Référence CVE CVE-2025-36009 https://www.cve.org/CVERecord?id=CVE-2025-36009 Référence CVE CVE-2025-36070 https://www.cve.org/CVERecord?id=CVE-2025-36070 Référence CVE CVE-2025-36098 https://www.cve.org/CVERecord?id=CVE-2025-36098 Référence CVE CVE-2025-36123 https://www.cve.org/CVERecord?id=CVE-2025-36123 Référence CVE CVE-2025-36184 https://www.cve.org/CVERecord?id=CVE-2025-36184 Référence CVE CVE-2025-36247 https://www.cve.org/CVERecord?id=CVE-2025-36247 Référence CVE CVE-2025-36353 https://www.cve.org/CVERecord?id=CVE-2025-36353 Référence CVE CVE-2025-36365 https://www.cve.org/CVERecord?id=CVE-2025-36365 Référence CVE CVE-2025-36366 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0326Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-29481 Référence CVE CVE-2025-29934 https://www.cve.org/CVERecord?id=CVE-2025-29934 Référence CVE CVE-2025-29943 https://www.cve.org/CVERecord?id=CVE-2025-29943 Référence CVE CVE-2025-30204 https://www.cve.org/CVERecord?id=CVE-2025-30204 Référence CVE CVE-2025-31133 https://www.cve.org/CVERecord?id=CVE-2025-31133 Référence CVE CVE-2025-31648 https://www.cve.org/CVERecord?id=CVE-2025-31648 Référence CVE CVE-2025-32441 https://www.cve.org/CVERecord?id=CVE-2025-32441 Référence CVE CVE-2025-34034 https://www.cve.org/CVERecord?id=CVE-2025-34034 Référence CVE CVE-2025-36001 https://www.cve.org/CVERecord?id=CVE-2025-36001 Référence CVE CVE-2025-36009 https://www.cve.org/CVERecord?id=CVE-2025-36009 Référence CVE CVE-2025-36070 https://www.cve.org/CVERecord?id=CVE-2025-36070 Référence CVE CVE-2025-36098 https://www.cve.org/CVERecord?id=CVE-2025-36098 Référence CVE CVE-2025-36123 https://www.cve.org/CVERecord?id=CVE-2025-36123 Référence CVE CVE-2025-36184 https://www.cve.org/CVERecord?id=CVE-2025-36184 Référence CVE CVE-2025-36353 https://www.cve.org/CVERecord?id=CVE-2025-36353 Référence CVE CVE-2025-36365 https://www.cve.org/CVERecord?id=CVE-2025-36365 Référence CVE CVE-2025-36366 https://www.cve.org/CVERecord?id=CVE-2025-36366 Référence CVE CVE-2025-36387 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0316Multiples vulnérabilités dans les produits VMware

d?id=CVE-2025-27516 Référence CVE CVE-2025-27558 https://www.cve.org/CVERecord?id=CVE-2025-27558 Référence CVE CVE-2025-29481 https://www.cve.org/CVERecord?id=CVE-2025-29481 Référence CVE CVE-2025-29934 https://www.cve.org/CVERecord?id=CVE-2025-29934 Référence CVE CVE-2025-29943 https://www.cve.org/CVERecord?id=CVE-2025-29943 Référence CVE CVE-2025-31133 https://www.cve.org/CVERecord?id=CVE-2025-31133 Référence CVE CVE-2025-31648 https://www.cve.org/CVERecord?id=CVE-2025-31648 Référence CVE CVE-2025-34034 https://www.cve.org/CVERecord?id=CVE-2025-34034 Référence CVE CVE-2025-36001 https://www.cve.org/CVERecord?id=CVE-2025-36001 Référence CVE CVE-2025-36009 https://www.cve.org/CVERecord?id=CVE-2025-36009 Référence CVE CVE-2025-36070 https://www.cve.org/CVERecord?id=CVE-2025-36070 Référence CVE CVE-2025-36098 https://www.cve.org/CVERecord?id=CVE-2025-36098 Référence CVE CVE-2025-36123 https://www.cve.org/CVERecord?id=CVE-2025-36123 Référence CVE CVE-2025-36184 https://www.cve.org/CVERecord?id=CVE-2025-36184 Référence CVE CVE-2025-36353 https://www.cve.org/CVERecord?id=CVE-2025-36353 Référence CVE CVE-2025-36365 https://www.cve.org/CVERecord?id=CVE-2025-36365 Référence CVE CVE-2025-36366 https://www.cve.org/CVERecord?id=CVE-2025-36366 Référence CVE CVE-2025-36387 https://www.cve.org/CVERecord?id=

Official advisory
CERT-FR · French · CERTFR-2026-AVI-0249Multiples vulnérabilités dans les produits IBM

d?id=CVE-2025-30698 Référence CVE CVE-2025-30749 https://www.cve.org/CVERecord?id=CVE-2025-30749 Référence CVE CVE-2025-30754 https://www.cve.org/CVERecord?id=CVE-2025-30754 Référence CVE CVE-2025-30761 https://www.cve.org/CVERecord?id=CVE-2025-30761 Référence CVE CVE-2025-31133 https://www.cve.org/CVERecord?id=CVE-2025-31133 Référence CVE CVE-2025-32386 https://www.cve.org/CVERecord?id=CVE-2025-32386 Référence CVE CVE-2025-32387 https://www.cve.org/CVERecord?id=CVE-2025-32387 Référence CVE CVE-2025-32421 https://www.cve.org/CVERecord?id=CVE-2025-32421 Référence CVE CVE-2025-36001 https://www.cve.org/CVERecord?id=CVE-2025-36001 Référence CVE CVE-2025-36009 https://www.cve.org/CVERecord?id=CVE-2025-36009 Référence CVE CVE-2025-36070 https://www.cve.org/CVERecord?id=CVE-2025-36070 Référence CVE CVE-2025-36098 https://www.cve.org/CVERecord?id=CVE-2025-36098 Référence CVE CVE-2025-36123 https://www.cve.org/CVERecord?id=CVE-2025-36123 Référence CVE CVE-2025-36184 https://www.cve.org/CVERecord?id=CVE-2025-36184 Référence CVE CVE-2025-36247 https://www.cve.org/CVERecord?id=CVE-2025-36247 Référence CVE CVE-2025-36353 https://www.cve.org/CVERecord?id=CVE-2025-36353 Référence CVE CVE-2025-36365 https://www.cve.org/CVERecord?id=CVE-2025-36365 Référence CVE CVE-2025-36366 https://www.cve.org/CVERecord?id=

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 not verified
Affected
11.5.0 ≤ 11.5.9; 12.1.0 ≤ 12.1.3
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
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 30 Jan 2026 · Last source change 4 Feb 2026, 17:28 UTC · CWE-1284 · Improper Validation of Specified Quantity in Input

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-2025-206552
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceCNA
NVD statusNVD enriched

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
ENISA EUVD · EUVD-2025-206552↗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-2025-36009 · cve.blacktree.nl