CVE-2018-12547
CVSS v3
9.8
CRITICAL
EPSS Score
2.7 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
Technical details
- Published
- 2019-02-11
Frequently asked questions
What is CVE-2018-12547?
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
Is CVE-2018-12547 actively exploited?
Active exploitation of CVE-2018-12547 has not been confirmed. Its EPSS score was 2.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-12547?
CVE-2018-12547 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2018-12547 affecting your environment?
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