EIP-2026-103667

PRE-CVE

Sun Java Runtime Environment 1.4.x - Font Object Assertion Failure Denial of Service

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-103667. PoCs published by Marc Schoenefeld.

AI-analyzed exploit summary This exploit triggers a denial-of-service (DoS) vulnerability in the Sun Java Runtime Environment by causing an assertion failure when processing a malformed font object. The PoC demonstrates the crash by loading a crafted font file via `Font.createFont()`.

Description

Sun Java Runtime Environment 1.4.x - Font Object Assertion Failure Denial of Service

Exploits (1)

exploitdb WORKING POC VERIFIED
by Marc Schoenefeld · javadosmultiple
https://www.exploit-db.com/exploits/24242

This exploit triggers a denial-of-service (DoS) vulnerability in the Sun Java Runtime Environment by causing an assertion failure when processing a malformed font object. The PoC demonstrates the crash by loading a crafted font file via `Font.createFont()`.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Sun Java Runtime Environment 1.4.1 through 1.4.2
No auth needed
Prerequisites: Java Runtime Environment with vulnerable font processing · Ability to deliver malformed font data to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026