Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE:8u441, 8u441-perf, 11.0.26, 17.0.14, 21.0.6, 24; Oracle GraalVM for JDK:17.0.14, 21.0.6, 24; Oracle GraalVM Enterprise Edition:20.3.17 and 21.3.13. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data as well as unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
Conclusion & alert: CVE-2025-21587 is rated Moderate Risk (44.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.21%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-24 | 0.78% | 0.21% | -0.57% |
| 2 | 2026-05-20 | 0.57% | 0.78% | +0.20% |
| 3 | 2026-05-19 | — | 0.57% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.4 | 3.1 | HIGH |
|
2.2 | 5.2 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-21587: 4 source package rows (openjdk11, openjdk17, openjdk21, openjdk8); 13 state rows across 4 repos (3.21-community, 3.22-community, 3.23-community, edge-community); fixed 13, open 0. | https://security.alpinelinux.org/vuln/CVE-2025-21587 |
debian
|
not yet assigned | CVE-2025-21587 not yet assigned priority: Debian including 4 source packages (openjdk-11, openjdk-17, openjdk-21, openjdk-8), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9. | https://security-tracker.debian.org/tracker/CVE-2025-21587 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2025-21587 |
suse
|
high | CVE-2025-21587 severity important: SUSE including 604 source package names (17.0.15.0-7.6:java-17-openjdk-17.0.15.0-150400.3.54.1, 17.0.15.0-7.6:java-17-openjdk-devel-17.0.15.0-150400.3.54.1, …), 1050 product×package rows across 91 product lines (Container bci/kiwi, Container bci/openjdk, … (91 product lines)): Fixed 767, Known Affected 231, Known Not Affected 52. | https://www.suse.com/security/cve/CVE-2025-21587/ |
ubuntu
|
medium | CVE-2025-21587 medium priority: Ubuntu including 15 source packages (openjdk-13, openjdk-16, …), 110 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): DNE 49, released 34, needs-triage 15, ignored 7, not-affected 5. | https://ubuntu.com/security/CVE-2025-21587 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | jre | 1.8.0 | cpe:2.3:a:oracle:jre:1.8.0:update441:*:*:-:*:*:* |
| oracle | jre | 1.8.0 | cpe:2.3:a:oracle:jre:1.8.0:update441:*:*:enterprise_performance_pack:*:*:* |
| oracle | jre | 11.0.26 | cpe:2.3:a:oracle:jre:11.0.26:*:*:*:*:*:*:* |
| oracle | jre | 17.0.14 | cpe:2.3:a:oracle:jre:17.0.14:*:*:*:*:*:*:* |
| oracle | jre | 21.0.6 | cpe:2.3:a:oracle:jre:21.0.6:*:*:*:*:*:*:* |
| oracle | jre | 24 | cpe:2.3:a:oracle:jre:24:*:*:*:*:*:*:* |
| oracle | jdk | 1.8.0 | cpe:2.3:a:oracle:jdk:1.8.0:update441:*:*:-:*:*:* |
| oracle | jdk | 1.8.0 | cpe:2.3:a:oracle:jdk:1.8.0:update441:*:*:enterprise_performance_pack:*:*:* |
| oracle | jdk | 11.0.26 | cpe:2.3:a:oracle:jdk:11.0.26:*:*:*:*:*:*:* |
| oracle | jdk | 17.0.14 | cpe:2.3:a:oracle:jdk:17.0.14:*:*:*:*:*:*:* |
| oracle | jdk | 21.0.6 | cpe:2.3:a:oracle:jdk:21.0.6:*:*:*:*:*:*:* |
| oracle | jdk | 24 | cpe:2.3:a:oracle:jdk:24:*:*:*:*:*:*:* |
| oracle | graalvm_for_jdk | 17.0.14 | cpe:2.3:a:oracle:graalvm_for_jdk:17.0.14:*:*:*:*:*:*:* |
| oracle | graalvm_for_jdk | 21.0.6 | cpe:2.3:a:oracle:graalvm_for_jdk:21.0.6:*:*:*:*:*:*:* |
| oracle | graalvm_for_jdk | 24 | cpe:2.3:a:oracle:graalvm_for_jdk:24:*:*:*:*:*:*:* |
| oracle | graalvm | 20.3.17 | cpe:2.3:a:oracle:graalvm:20.3.17:*:*:*:enterprise:*:*:* |
| oracle | graalvm | 21.3.13 | cpe:2.3:a:oracle:graalvm:21.3.13:*:*:*:enterprise:*:*:* |