Security readout for executives and security teams
Plain-English summary
This is a local privilege-escalation flaw in IBM Db2. Someone with local access to an affected Db2 host could potentially run code as root through a buffer overflow in db2fm. The business risk is highest where Db2 servers are shared, exposed to many administrators, or could be reached after another compromise.
Executive priority
Treat this as a high-priority infrastructure hardening issue, especially for production databases. It is not described as remotely exploitable, but it can materially worsen any foothold on a Db2 host by enabling root-level compromise.
Technical view
CVE-2020-5025 affects IBM Db2 for Linux, UNIX and Windows, including Db2 Connect Server, versions 9.7, 10.1, 10.5, 11.1, and 11.5. The db2fm component has improper bounds checking causing a buffer overflow. CVSS 3.0 is 8.4: local attack vector, low complexity, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to systems running the listed IBM Db2 versions where an attacker can obtain local execution on the host. This includes database servers, administration hosts, and environments where service accounts, shell users, or already-compromised applications can interact locally with Db2 components.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS temporal vector marks exploit maturity as unproven. Risk still matters because successful exploitation could convert local access into root-level control on a database system.
Researcher notes
The bundle identifies db2fm as the vulnerable component and improper bounds checking as the cause, but does not include patch IDs, affected fix packs, exploit details, or proof-of-concept status. Avoid assuming remote exposure; validation should focus on local access paths and confirmed Db2 versions.
Mitigation direction
- Review IBM advisory for the vendor-designated fix or supported upgrade path.
- Prioritize affected Db2 hosts that support critical applications or sensitive data.
- Restrict local shell and service-account access to Db2 hosts.
- Check NetApp advisory for any dependent product exposure in your environment.
- Monitor vendor guidance because patch identifiers are not included in the source bundle.
Validation and detection
- Inventory Db2 LUW and Db2 Connect Server versions across servers.
- Confirm whether versions 9.7, 10.1, 10.5, 11.1, or 11.5 are present.
- Verify whether IBM’s advisory fix has been applied to each affected host.
- Review local user and service-account access on affected Db2 systems.
- Check vulnerability scanner findings against actual installed Db2 versions.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-5025 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
- High
- CVSS
- 8.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/PR:N/AV:L/AC:L/UI:N/S:U/I:H/A:H/C:H/RC:C/RL:O/E:U
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:3.0/PR:N/AV:L/AC:L/UI:N/S:U/I:H/A:H/C:H/RC:C/RL:O/E:U2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.4HighVector: CVSS:3.0/PR:N/AV:L/AC:L/UI:N/S:U/I:H/A:H/C:H/RC:C/RL:O/E:U
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6427855CVE reference · x_refsource_CONFIRM
- ibm-db2-cve20205025-bo (193661)CVE reference · vdb-entry, x_refsource_XF
- https://security.netapp.com/advisory/ntap-20210409-0003/CVE reference · x_refsource_CONFIRM
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.