High severity · published Jun 28, 2025
CVE-2025-1991
IBM Informix Dynamic Server denial of service
7.5
CVSS
0.4%
EPSS
No
On KEV
Description
IBM Informix Dynamic Server 12.10,14.10, and15.0 could allow a remote attacker to cause a denial of service due to an integer underflow when processing packets.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ID
Informix Dynamic Server · IBM
12.10; 14.10; 15.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-1991
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-1991
Vendor Advisory
https://www.ibm.com/support/pages/node/7238455
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