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HIGH

CVE-2019-10097

CVSS v3

7.2

HIGH

EPSS Score

52.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mod_mdAlmaLinux:8all versions · fixed in 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa

Vendor advisories

  • CVE-2019-10097 Red Hat Product Security459 products fixed · 5 known affected

    httpd: null-pointer dereference in mod_remoteip

    httpd22 as a component of Red Hat JBoss Enterprise Web Server 2 · jbcs-httpd24 as a component of Red Hat JBoss Enterprise Web Server 2 · jbcs-httpd24-runtime as a component of Red Hat JBoss Enterprise Web Server 2

  • RHSA-2020:4751 Red Hat Product Security85 products fixed

    Red Hat Security Advisory: httpd:2.4 security, bug fix, and enhancement update

  • RHSA-2020:1337 Red Hat Product Security89 products fixed

    Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update

  • RHSA-2020:1336 Red Hat Product Security1 product fixed

    Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update

  • RHSA-2019:4126 Red Hat Product Security284 products fixed

    Red Hat Security Advisory: httpd24-httpd security, bug fix, and enhancement update

Full record on NVD

Description

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.

Technical details

Published
2019-09-26

Frequently asked questions

What is CVE-2019-10097?

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.

Is CVE-2019-10097 actively exploited?

Active exploitation of CVE-2019-10097 has not been confirmed. Its EPSS score was 52.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-10097?

CVE-2019-10097 has a CVSS v3 base score of 7.2 (HIGH severity).

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