Is CVE-2023-6478 actively exploited?

CVE-2023-6478 has no public evidence of in-the-wild exploitation as of 2025-08-04.

What is the CVSS score for CVE-2023-6478?

CVE-2023-6478 has a CVSS score of 7.6 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L.

How do I patch CVE-2023-6478?

Patch guidance is available from x.org security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-6478.

Fix CVE-2023-6478 - HIGH x.org x server

Q: Which products are affected by CVE-2023-6478?

7 products: x.org x server, x.org xwayland, redhat enterprise linux eus, debian debian linux, debian debian linux, and 2 more.

Description

A flaw was found in xorg-server. A specially crafted request to RRChangeProviderProperty or RRChangeOutputProperty can trigger an integer overflow which may lead to a disclosure of sensitive information.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: low
Availability: low
Weaknesses: CWE-190 · Integer Overflow CWE-190 · Integer Overflow

Metadata

Primary Vendor: X.ORG
Published: 12/13/2023
Last Modified: 8/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

x.org : x_serverx.org : xwaylandredhat : enterprise_linux_eusdebian : debian_linuxdebian : debian_linuxdebian : debian_linuxtigervnc : tigervnc

Remediation Guidance

Executive Summary

View on NIST NVD