CVE-2025-1991

Name: CVE-2025-1991
Creator: NVD / NIST
Published: 2025-06-28T13:15:23.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2025-1991 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.38%

29.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-191

Affected Software

Vendor	Product	Versions
Ibm	Informix Dynamic Server	12.10
Ibm	Informix Dynamic Server	14.10
Ibm	Informix Dynamic Server	15.0

References

https://www.ibm.com/support/pages/node/7238455Vendor Advisory

Timeline

Published: Jun 28, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-1991?

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.

How severe is CVE-2025-1991?

CVE-2025-1991 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2025-1991?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-1991?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST