CVE-2023-2203

Name: CVE-2023-2203
Creator: NVD / NIST
Published: 2023-05-17T22:15:10.943+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.93%

Last modified Jun 17, 2026

CVE-2023-2203 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. EPSS estimates a 0.93% chance of exploitation in the next 30 days.

Description

A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.93%

56.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Webkitgtk	Webkit2gtk3	2.38.5-1.el8
Webkitgtk	Webkit2gtk3	2.38.5-1.el9
Redhat	Enterprise Linux	8.0
Redhat	Enterprise Linux	9.0
Redhat	Enterprise Linux Eus	8.8
Redhat	Enterprise Linux Eus	9.2
Redhat	Enterprise Linux Server Aus	8.8
Redhat	Enterprise Linux Server Aus	9.2
Redhat	Enterprise Linux Server Tus	8.8

References

https://access.redhat.com/errata/RHSA-2023:2653Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:3108Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-2203Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2188543Issue Tracking, Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:2653Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:3108Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-2203Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2188543Issue Tracking, Third Party Advisory

Timeline

Published: May 17, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-2203?

How severe is CVE-2023-2203?

CVE-2023-2203 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.93% probability of exploitation in the next 30 days.

How do I fix CVE-2023-2203?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-2203?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST