What is CVE-2023-2597?

CVE-2023-2597 is a high-severity vulnerability in Eclipse Openj9, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.0/10. Published 2023-05-22.

How severe is CVE-2023-2597?

High severity. CVSS v3 base score is 7.0 out of 10.

Buffer overflow in Eclipse Openj9

CVE-2023-2597

In Eclipse Openj9 before version 0.38.0, in the implementation of the shared cache (which is enabled by default in OpenJ9 builds) the size of a string is not properly checked against the size of the buffer.

Vulnerability class: Buffer Overflow

Published 2023-05-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.4th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Eclipse Openj9
Eclipse Foundation Openj9 — versions unspecified

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-2597?: CVE-2023-2597 is a high-severity vulnerability in Eclipse Openj9, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.0/10. Published 2023-05-22.
How severe is CVE-2023-2597?: High severity. CVSS v3 base score is 7.0 out of 10.