CVE-2025-2668
IBM Db2 Denial of Service
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
IBM Db2 Denial of Service
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
- Record
CVE-2025-2668- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-789
- Updated
- 2026-11-02
EUVDEUVD-2025-206550
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
- Record
EUVD-2025-206550- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-29f9-wqmc-g6q2
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable...
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
- Record
GHSA-29f9-wqmc-g6q2- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-770, CWE-789
- Updated
- 2026-11-02
NVD
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
- Record
CVE-2025-2668- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-789, CWE-770
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-2668
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 is vulnerable to a denial of service as the server may crash when an authenticated user creates a specially crafted query.
- Record
UBUNTU-CVE-2025-2668- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVROOT-OS-UBUNTU-2204-CVE-2025-2668 No score
CVE-2025-2668 in linux - Patched by Root
Root has patched CVE-2025-2668 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.
- Record
ROOT-OS-UBUNTU-2204-CVE-2025-2668- Updated
- 2026-11-06
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
linuxRoot:Ubuntu:22.04 |
before 5.15.0-203.213.aikido.119 | 5.15.0-203.213.aikido.119 |
rootio-linuxRoot:Ubuntu:22.04 |
before 5.15.0-203.213.aikido.119 | 5.15.0-203.213.aikido.119 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | OSV | |
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-2668 is a medium vulnerability (CVSS 6.5) in Ibm Db2, published January 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. Fixed in linux 5.15.0-203.213.aikido.119.