CVE-2025-1991

HIGH
Published Jun 28, 2025 Modified Aug 14, 2025 CWE-191

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.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-191 CWE-191

Affected Products

Vendor Product
ibm informix_dynamic_server
ibm informix_dynamic_server
ibm informix_dynamic_server

References

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. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2025-1991? +
CVE-2025-1991 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-1991? +
CVE-2025-1991 affects products from ibm, specifically: informix_dynamic_server. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-1991? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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