CVE-2026-13476: high-severity vulnerability in IBM Informix Dynamic Server
IBM Informix Wire Listener Vulnerable to Unauthenticated Remote Code Execution
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.4%
IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary commands with service account privileges on the system due to improper validation of user supplied input.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
IBM · Informix Dynamic ServerRelated CVEs — IBM Informix Dynamic Server
In the same product, most dangerous first.
CVE-2026-13361HIGHIBM Informix Server Vulnerability in SQL Interface Handler Could Allow Remote Code ExecutionEPSS 0.5%CVE-2025-1991HIGHIBM Informix Dynamic Server denial of serviceEPSS 0.4%CVE-2024-49342HIGHIBM Informix Dynamic Server information disclosureEPSS 0.4%CVE-2020-4799HIGHCVE-2020-4799EPSS 0.4%CVE-2021-20515MEDIUMCVE-2021-20515EPSS 0.3%CVE-2023-28523HIGHIBM Informix Dynamic Server buffer overflowEPSS 0.3%