CVE WatchOct 21, 2026

CVE-2026-87255

Vulnerability in Oracle Java SE (component: Compiler). Supported versions that are affected are Oracle Java SE: 25.0.4.1 and 27. Difficult

CVSS

3.7

Low

EPSS

0.3%

p25

KEV

—

Exploit Today

0-100

Published: Oct 20, 2026 · Last modified: Oct 21, 2026

EPSS · 30d

0.3%EPSS · 30 days0.3%

2026-10-212026-10-25

Technical description

Vulnerability in Oracle Java SE (component: Compiler). Supported versions that are affected are Oracle Java SE: 25.0.4.1 and 27. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Official references

www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2026.html

Related CVEs

No related CVEs by CWE or product.