Is CVE-2018-4878 actively exploited?

CVE-2018-4878 has no public evidence of in-the-wild exploitation as of 2025-11-18.

What is the CVSS score for CVE-2018-4878?

CVE-2018-4878 has a CVSS score of 7.8 (HIGH severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2018-4878?

Patch guidance is available from adobe security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2018-4878.

Fix CVE-2018-4878 - HIGH adobe flash player

Q: Which products are affected by CVE-2018-4878?

7 products: adobe flash player, redhat enterprise linux desktop, redhat enterprise linux server, redhat enterprise linux workstation, adobe flash player, and 2 more.

Description

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player handling of listener objects. A successful attack can lead to arbitrary code execution. This was exploited in the wild in January and February 2018.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: ADOBE
Published: 2/6/2018
Last Modified: 11/18/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

adobe : flash_playerredhat : enterprise_linux_desktopredhat : enterprise_linux_serverredhat : enterprise_linux_workstationadobe : flash_playeradobe : flash_playeradobe : flash_player

Remediation Guidance

Executive Summary

View on NIST NVD