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CVE-2018-1636

19
FAUCET Score

CVE-2018-1636 describes a stack-based buffer overflow vulnerability in the oninit component of IBM Informix Dynamic Server Enterprise Edition 12.1. This flaw allows an authenticated user with high privileges to execute arbitrary code, potentially escalating to a root shell. The vulnerability has a CVSS v3.1 score of 6.7 (Medium), indicating a local attack vector with low complexity and high impact on confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc1:*:*:enterprise:*:*:*
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc10:*:*:enterprise:*:*:*
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc11:*:*:enterprise:*:*:*
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc12:*:*:enterprise:*:*:*
12.10CPE matchmatch criteria
cpe:2.3:a:ibm:informix_dynamic_server:12.10:fc2:*:*:enterprise:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.2HIGH

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.5
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 86th percentile among its peer group of 3,720 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/144441
VDB EntryVendor Advisory
security.netapp.com / advisory/ntap-20190903-0002
Third Party Advisory
ibm.com / support/docview.wss
Vendor Advisory