CVE-2025-21587

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).

Published: 2025-04-15 Last update: 2025-11-03 Assigner: [email protected] Source: [email protected]

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.

Exploit prediction scoring system (EPSS) score for CVE-2025-21587

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)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-21587

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.4 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
2.2 5.2 [email protected]

Weakness enumeration for CVE-2025-21587

OS Trackers for CVE-2025-21587

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

Affected software / configurations for 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:*:*:*

References for CVE-2025-21587

cvelogic Threat Intelligence