CISA KEV · Known exploitedHigh

CVE-2019-0211

Apache HTTP Server

In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes or threads (including scripts executed by an in-process scripting interpreter) could execute arbitrary code with the privileges of the parent process (usually root) by manipulating the scoreboard. Non-Unix systems are not affected.

CVSS: 7.8
EPSS: 65.0%
CISA KEV: Listed
Published: 2019.04.09

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability65.0%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Apache HTTP Server
Affected versions: 2.4.17 to 2.4.38, >= 2.4.17 <= 2.4.38, 28, 29, 30, 14.04, 16.04, 18.04, 18.10, 9.0, 15.0, 42.3, 1.0, 3.11, 3.11 ppc64le, 8.0, 8.1, 8.2, 8.4, 8.6
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.05.03

1
Identify
Confirm that Apache HTTP Server and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416
KEV added: 2021.11.03
Ransomware use: 미확인