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: An unauthenticated remote attacker can use modified flow-control windows to exhaust server resources. This leads to thread starvation , causing the application to stop responding to legitimate users. Severity : Medium (CVSS 5.9). 2. Padding Oracle in mod_session_crypto (CVE-2016-0736)
Modern versions (2.4.58+) have patched these legacy flaws. apache httpd 2.4.18 vulnerability
Apache HTTP Server version 2.4.18, released in late 2015, contains several security vulnerabilities that could compromise the stability and security of a web server. If you are running this legacy version, it is critical to understand these risks—primarily and Cryptographic Weaknesses —and prioritize an upgrade to the latest stable release. Core Vulnerabilities in Apache 2.4.18 : An unauthenticated remote attacker can use modified
In the context of modern security compliance (such as PCI-DSS or NIST frameworks), running an end-of-life software version is considered a critical vulnerability in itself. Automated vulnerability scanners flag version 2.4.18 not just for specific CVEs, but because the version string itself represents an unmaintainable attack surface. It lacks the modern hardening found in 2.4.50+ versions, such as improved protections against HTTP Request Smuggling and stricter input validation. If you are running this legacy version, it
Apache maintains a list of vulnerabilities by version: https://httpd.apache.org/security/