CVE-2003-1123

CVE-2003-1123 is a high-severity vulnerability in Sun Jdk with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Sun Java Runtime Environment (JRE) and SDK 1.4.0_01 and earlier allows untrusted applets to access certain information within trusted applets, which allows attackers to bypass the restrictions of the Java security model.

Frequently asked questions

What is CVE-2003-1123?
Sun Java Runtime Environment (JRE) and SDK 1.4.0_01 and earlier allows untrusted applets to access certain information within trusted applets, which allows attackers to bypass the restrictions of the Java security model.
How severe is CVE-2003-1123?
CVE-2003-1123 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-1123 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1123?
CVE-2003-1123 primarily affects Sun Jdk. In total, 60 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-1123?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2003-1123 published?
CVE-2003-1123 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (60)

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