CVE-2018-20742
CVSS v3
7.5
HIGH
EPSS Score
1.4 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.
Technical details
- Published
- 2019-01-24
Frequently asked questions
What is CVE-2018-20742?
An issue was discovered in UC Berkeley RISE Opaque before 2018-12-01. There is no boundary check on ocall_malloc. The return value could be a pointer to enclave memory. It could cause an arbitrary enclave memory write.
Is CVE-2018-20742 actively exploited?
Active exploitation of CVE-2018-20742 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-20742?
CVE-2018-20742 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-20742 affecting your environment?
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