CVE-2025-36353: IBM Db2 for Linux, UNIX and Windows · CWE-943
Affects IBM Db2 for Linux, UNIX and WindowsSource CVE Database V5
Not known to be exploited · CVSS 6.2 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 30 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| IBMDb2 for Linux, UNIX and Windows | Affected
| Fixed in– |
CPE configurations (20)
cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:linux:*:*cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:unix:*:*cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:aix:*:*cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:windows:*:*cpe:2.3:a:ibm:db2:11.5.0:*:*:*:*:zos:*:*cpe:2.3:a:ibm:db2:11.5.9:*:*:*:*:linux:*:*
AI-suggested
- Restrict local access to servers running IBM Db2 to trusted administrators and processes only, minimizing the risk of exploitation by unauthorized local users.
- Implement strict access controls and monitoring on database hosts to detect unusual query patterns or resource usage indicative of exploitation attempts.
- Employ host-based intrusion detection systems (HIDS) and security information and event management (SIEM) tools to alert on suspicious activities related to Db2 processes.
- Segregate database servers in secure network zones with limited user access to reduce the attack surface.
- Regularly audit user accounts and permissions on database hosts to ensure no unauthorized local accounts exist.
- Stay informed on IBM security advisories and apply patches or updates promptly once they become available for this vulnerability.
- Consider temporary workarounds such as disabling or limiting certain query functionalities if feasible, until patches are released.
- Conduct internal penetration testing and vulnerability assessments focusing on local privilege escalation and DoS scenarios involving Db2.
Description
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5.0 - 11.5.9 and 12.1.0 - 12.1.3 could allow a local user to cause a denial of service due to improper neutralization of special elements in data query logic.