Is CVE-2023-6349 actively exploited?

CVE-2023-6349 has no public evidence of in-the-wild exploitation as of 2025-07-22.

What is the CVSS score for CVE-2023-6349?

CVE-2023-6349 has a CVSS score of 5.7 (MEDIUM severity). Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:A/V:D/RE:X/U:X.

How do I patch CVE-2023-6349?

Patch guidance is available from webmproject security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-6349.

CVE-2023-6349 - remediation guidance & executive summary

Description

A heap overflow vulnerability exists in libvpx - Encoding a frame that has larger dimensions than the originally configured size with VP9 may result in a heap overflow in libvpx. We recommend upgrading to version 1.13.1 or above

CVSS Metrics

Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:P/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:N/R:A/V:D/RE:X/U:X
Attack Vector: local
Complexity: high
Privileges: low
User Action: passive
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-122 CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: WEBMPROJECT
Published: 5/27/2024
Last Modified: 7/22/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2023-6349

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary