PatchRadar

← Browse

CVE-2026-28780

Medium

Elevated severity or exploit probability.

CVSS base
9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
1.6%
75.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-787
Published 2026-05-05 · modified 2026-09-14

Description

Heap-based Buffer Overflow vulnerability in mod_proxy_ajp of Apache HTTP Server. If mod_proxy_ajp connects to a malicious AJP server this AJP server can send a malicious AJP message back to mod_proxy_ajp and cause it to write 4 attacker controlled bytes after the end of a heap based buffer. This issue affects Apache HTTP Server: through 2.4.66. Users are recommended to upgrade to version 2.4.67, which fixes the issue.

Affected

apache

References

Official: NVD · CVE.org