CVE-2019-4253

CVE-2019-4253 is a high-severity vulnerability in Ibm Informix Dynamic Server with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

IBM Informix Dynamic Server Enterprise Edition 12.1 could allow a local privileged Informix user to load a malicious shared library and gain root access privileges. IBM X-Force ID: 159941.

Frequently asked questions

What is CVE-2019-4253?
IBM Informix Dynamic Server Enterprise Edition 12.1 could allow a local privileged Informix user to load a malicious shared library and gain root access privileges. IBM X-Force ID: 159941.
How severe is CVE-2019-4253?
CVE-2019-4253 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-4253 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-4253?
CVE-2019-4253 primarily affects Ibm Informix Dynamic Server. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-4253?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-4253 published?
CVE-2019-4253 was published on 2019-08-20 and last updated on 2026-06-17.

References

Affected products (12)

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