CVE-2026-111075 Eclipse OpenJ9 - Denial of Service

Eclipse OpenJ9 < 0.63.0 contains a denial of service caused by lack of cross-field validation on attacker-controlled fields in JITServer DataDescriptor deserialization, letting unauthenticated remote attackers trigger out-of-bounds heap read and crash, exploit requires crafted network payload.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
21 October 2026
Updated
22 October 2026
Weakness
CWE-125

Vendor fix

Update to version 0.63.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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