CVE-2018-1635

MEDIUMNVD 6.76.7—

6.7

Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.

CVSS v3: 6.7
EG Score: 6.7(medium)
EPSS: 22.3%
KEV: Not listed

Published

August 20, 2019

Last Modified

November 21, 2024

References (6)

psirt@ushttp://www.ibm.com/support/docview.wss?uid=ibm10964987
psirt@ushttps://exchange.xforce.ibmcloud.com/vulnerabilities/144439
psirt@ushttps://security.netapp.com/advisory/ntap-20190903-0002/
af854a3a-2127-422b-91ae-364da2661108http://www.ibm.com/support/docview.wss?uid=ibm10964987
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/144439
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190903-0002/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 9× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
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2026-05-29 13:41 UTCepss_batch
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2026-05-27 15:42 UTCEG score recompute
2026-05-27 15:42 UTCGHSA enrichment
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2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-1635?

CVE-2018-1635 is a medium vulnerability published on August 20, 2019. Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144439.

When was CVE-2018-1635 disclosed?

CVE-2018-1635 was first published in the National Vulnerability Database on August 20, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-1635 actively exploited?

CVE-2018-1635 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-1635?

CVE-2018-1635 has a CVSS v3 base score of 6.7 (NVD).

How do I remediate CVE-2018-1635?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-1635, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2018-1635

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-1635?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (6)

Frequently asked(5)

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