What is the CVSS score of CVE-2026-16702?

CVE-2026-16702 has a CVSS 3.1 base score of 6.5 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.3%.

Is there a patch available for CVE-2026-16702?

Yes, a patch is available for CVE-2026-16702. Update the affected software to the latest version immediately.

Db2 CVE-2026-16702

EUVD-2026-77788 MEDIUM

NULL Pointer Dereference (CWE-476)

2026-09-14 ibm

GHSA-4hwq-345h-4p3j

Denial Of Service Null Pointer Dereference IBM Microsoft Db2

6.5

CVSS 3.1 · Vendor: ibm

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Vulnerability Assessment

Weakness

CWE

CWE-476

OWASP Top 10:2025

A10:2025 - Mishandling of Exceptional Conditions

ASVS 5.0

V16 - Security Logging and Error Handling Null pointer safety, defensive checks

MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

Patch available 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Authenticated denial of service in IBM Db2 11.5.0 through 11.5.9 and 12.1.0 through 12.1.5 on Linux, UNIX and Windows (including Db2 Connect Server) lets a remote attacker with a valid database session crash the engine by triggering a null pointer dereference. The impact is availability-only (CVSS 6.5, AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), so confidentiality and integrity of stored data are not directly at risk, but any application or Db2 Connect client depending on the affected instance loses service. No public exploit code has been identified at time of analysis, the flaw is not in CISA KEV, SSVC rates exploitation and automatable both as none/no, and no EPSS score was supplied in the intelligence feed.

Affected VersionsENISA

DB2 12.1.0 ≤12.1.5

DB2 11.5.0 ≤11.5.9

Affected Packages

euvd db2 no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (ibm) PRIMARY 6.5 MEDIUM

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Primary rating from Vendor (ibm) · only source for this CVE.

CVSS VectorVendor: ibm

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

DescriptionCVE.org

IBM Db2 11.5.0 through 11.5.9, and 12.1.0 through 12.1.5 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a remote authenticated attacker to cause a denial of service due to a null pointer dereference.

Threat Intelligence Overview

EPSS Score

0.3%

Top 72% exploitable

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS

Vulnrichment

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.3%

Patch available Yes

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Human Impact· derived

Medium

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +32

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Null Pointer Dereference MEDIUM

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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Same weakness CWE-476 – NULL Pointer Dereference

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CVE-2011-0609 HIGH POC

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References

Advisories & patches

PATCH https://www.ibm.com/support/pages/node/7286981 ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-16702 ADVISORY https://vuldb.com/vuln/403692

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

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