USN-8339-1: OpenJDK 25 vulnerabilities

Thomas Beckers discovered that the JAXP component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to gain unauthorized access to sensitive
information. (CVE-2026-22016)

It was discovered that the Networking component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-34282)

It was discovered that the JSSE component of OpenJDK 25 did not correctly
authenticate certain APIs. A remote unauthenticated attacker could possibly
use this issue to cause a denial of service. (CVE-2026-22021)

It was discovered that the JGSS component of OpenJDK 25 did not correctly
authenticate certain APIs. A remote attacker could possibly use this issue
to obtain sensitive information. (CVE-2026-22013)

It was discovered that the 2D component of OpenJDK 25 did not correctly
handle certain integer arithmetic. If a user or automated system were
tricked into opening a specially crafted file, an attacker could possibly
use this issue to obtain sensitive information. (CVE-2026-23865)

It was discovered that the Libraries component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to modify data. (CVE-2026-22008)

It was discovered that the Libraries component of OpenJDK 25 did not
correctly authenticate certain APIs. A remote unauthenticated attacker
could possibly use this issue to cause a denial of service.
(CVE-2026-22018)

Ken Pyle discovered that the Security component of OpenJDK 25 did not
correctly authenticate certain APIs. A local attacker could possibly use
this issue to obtain sensitive information. (CVE-2026-22007,
CVE-2026-34268)

In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.

Please see the following for more information:
https://openjdk.org/groups/vulnerability/advisories/2026-04-21

nmap -sV --script vuln -p- <target-network>

tail -f /var/log/suricata/fast.log | grep <cve>

Check Vendor Security Advisory Bulletin

title: Detect Exploitation - USN-8339-1: OpenJDK 25 vulnerabilities
id: e0963aef-3761-47b0-b716-aaad81b51ded
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access

rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-24"
        description = "YARA Signature for "
    strings:
        $str = "USN-8339-1: OpenJDK 25 vulnera" ascii wide
    condition:
        any of them
}