Java 7 Update 80 Vulnerabilities

If you are currently running Java 7 Update 80, you are operating with known, unpatched vulnerabilities.

These are some publicly disclosed critical vulnerabilities that existed before or around the time of Java 7u80:

The Critical Patch Update (CPU) for April 2015 (which included 7u80) fixed .

If the legacy application absolutely cannot be modified or recompiled, organizations must purchase commercial support to receive legacy patches. java 7 update 80 vulnerabilities

The built-in XML parsers (like JAXP) in Java 7u80 do not disable external DTDs (Document Type Definitions) or external entities by default. Attackers can leverage this to read arbitrary local files from the server, perform Internal Port Scanning (SSRF), or cause resource exhaustion. 4. TLS/SSL Protocol Weaknesses Java 7 Update 80 has outdated cryptographic baselines:

Compensating controls are temporary band-aids. The only definitive solution to Java 7u80 vulnerabilities is migrating code to Long-Term Support (LTS) versions, such as or Java 21 .

Completely uninstall or disable the Java browser plugin across the enterprise. If you are currently running Java 7 Update

Third-party vendors offer legacy support options for OpenJDK 7 builds, backporting critical security fixes to older runtimes. 4. Containerization (Short-Term Containment)

The most critical vulnerability regarding Java 7u80 is its age. Oracle ceased public updates for Java 7 in April 2015.

Is your Java 7u80 deployment running a or a desktop client application ? The built-in XML parsers (like JAXP) in Java

While 7u80 was intended to fix existing vulnerabilities at the time of its release, it is now inherently insecure. Since July 2022, Oracle has ended even extended commercial support, meaning no new security holes in this specific version will be patched for the public.

It is the absence of security for the past nine years. The National Vulnerability Database (NVD) lists over 1,200 CVEs affecting Java 7, the majority of which are not patched in Update 80.

When 7u80 was released on , it addressed a specific set of vulnerabilities. If you are running a version older than 7u80 (e.g., 7u79 or 7u75), you are vulnerable to these specific exploits which were actively used in the wild at the time.

Although Update 80 fixed many prior flaws, it was not immune. Critically, several severe vulnerabilities were discovered after Oracle ended public support (April 2015). These were never patched in the Java 7 branch. The most notorious include: