Security readout for executives and security teams
Plain-English summary
CVE-2023-30446 is an IBM Db2 availability flaw. A specially crafted query against certain tables can cause denial of service. It affects Db2 for Linux, UNIX and Windows, including Db2 Connect Server, versions 10.5, 11.1, and 11.5.
Executive priority
Treat as a moderate availability risk for business systems backed by Db2. Prioritize externally reachable, revenue-critical, or shared database environments, but the sources do not support emergency response for active exploitation.
Technical view
IBM describes an improper input validation issue in Db2 LUW and Db2 Connect Server. The CVSS 3.1 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H, indicating network reachability, high attack complexity, no user interaction, and availability-only impact.
Likely exposure
Exposure is most likely in organizations running IBM Db2 LUW or Db2 Connect Server 10.5, 11.1, or 11.5, especially where Db2 services are reachable beyond tightly controlled application and administration networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation is described only as a specially crafted query on certain tables, with high attack complexity and denial-of-service impact.
Researcher notes
Evidence is limited to vendor and CVE metadata. The core issue maps to CWE-20 and availability impact only. Do not assume data theft or integrity compromise from the provided record.
Mitigation direction
- Check IBM advisory 7010557 for the vendor-supported fix or remediation path.
- Prioritize affected Db2 10.5, 11.1, and 11.5 instances exposed to untrusted networks.
- Restrict Db2 network access to trusted application hosts and administrators.
- Review NetApp advisory applicability where NetApp products depend on IBM Db2.
Validation and detection
- Inventory Db2 LUW and Db2 Connect Server versions across production and shared environments.
- Confirm whether any instances run affected versions 10.5, 11.1, or 11.5.
- Verify applied fixes against IBM advisory and X-Force ID 253361.
- Review network paths to Db2 listeners for unnecessary external or broad internal exposure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-30446 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/7010557CVE reference · vendor-advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/253361CVE reference · vdb-entry
- https://security.netapp.com/advisory/ntap-20230731-0007/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.