CVE-2020-27221

CRITICAL
9.8
CVSS Score
Published: January 21, 2021 at 04:55 AM UTC
Updated: June 17, 2026 at 03:08 AM UTC
1 product affected across 1 vendorOpenJ9

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

In Eclipse OpenJ9 up to and including version 0.23, there is potential for a stack-based buffer overflow when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 0.23

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMIssue TrackingVendor Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=569763

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-121CWE-787

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