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01 Record

CVE-2018-1635

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

HighPUBLISHEDCNA: ibm
CNA base score8.2 CVSS v3.xCVSS:3.0/C:H/PR:H/I:H/UI:N/S:C/AC:L/A:H/AV:L/RL:O/RC:C/E:U
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02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.9% of scored records. A rank, not a probability.
NVD base score
6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2019-08-20 18:50Z7 YR AGO
Last updated
2024-09-16 23:26Z2 YR AGO
Reserved
2017-12-13
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 8.2)
CNA CVSS vector
CVSS:3.0/C:H/PR:H/I:H/UI:N/S:C/AC:L/A:H/AV:L/RL:O/RC:C/E:U
Weaknesses
Data version
5.1
Document digest
eed8ffb89f60fb715c8fb16f0134e0176a596b6015fdba8044e86fc88600a1a8

05 Affected products

VendorProductVersionsPlatforms
IBMInformix Dynamic Server Enterprise Edition12.1—

06 References