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CVE-2023-6349

21
FAUCET Score

CVE-2023-6349 is a heap overflow vulnerability in libvpx, specifically affecting webmproject's libvpx library. It occurs when encoding VP9 frames with dimensions larger than initially configured, potentially leading to a denial of service. With a CVSS score of 7.5 (HIGH), this vulnerability can be exploited remotely without user interaction, causing high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.13.1CPE matchmatch criteria
cpe:2.3:a:webmproject:libvpx:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.7MEDIUM

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
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
HIGH
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
HIGH
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 10th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libvpx-0:1.7.0-11.el8_10
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: libvpx

Vendor Advisories (2)

redhatCVE-2023-6349Moderate

libvpx: Heap buffer overflow related to VP9 encoding

May 27, 2024
microsoft2024-May/CVE-2023-6349

Heap overflow in libvpx

May 14, 2024

References

crbug.com / webm/1642
ExploitIssue Tracking