Is CVE-2018-18826 actively exploited?

CVE-2018-18826 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2018-18826?

CVE-2018-18826 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

How do I patch CVE-2018-18826?

Patch guidance is available from libav security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-18826.

CVE-2018-18826 - remediation guidance & executive summary

Description

There exists a heap-based buffer overflow in vc1_decode_p_mb_intfi in vc1_block.c in Libav 12.3, which allows attackers to cause a denial-of-service via a crafted aac file.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-787 · Out-of-bounds Write

Metadata

Primary Vendor: LIBAV
Published: 10/30/2018
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

libav : libav

Remediation Guidance

Executive Summary

Cite this page

CVE-2018-18826. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2018-18826

View on NIST NVD

CVE-2018-18826 vulnerability