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CVE-2026-28780 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: May 6, 2026

Apache HTTP Server - Buffer Overflow

Published: May 5, 2026Updated: May 6, 2026Remote Exploitable

Overview

Apache HTTP Server <= 2.4.66 contains a heap-based buffer overflow caused by mod_proxy_ajp processing malicious AJP messages, letting remote attackers cause memory corruption, exploit requires connection to a malicious AJP server.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Attackers can cause memory corruption leading to potential remote code execution or denial of service.

Mitigation

Upgrade to version 2.4.67.

References

http://www.openwall.com/lists/oss-security/2026/05/05/9
https://httpd.apache.org/security/vulnerabilities_24.html

Related Resources

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Details

CVE ID: CVE-2026-28780
Severity: Critical
CVSS Score: 9.8
Type: buffer_overflow
Status: unconfirmed

CWE

CWE-122

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H