CVE-2018-4920

Name: CVE-2018-4920
Creator: NVD / NIST
Published: 2018-05-19T17:29:00.697+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 7.87%

Last modified Jun 17, 2026

CVE-2018-4920 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Adobe Flash Player versions 28.0.0.161 and earlier have an exploitable type confusion vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.. EPSS estimates a 7.87% chance of exploitation in the next 30 days.

Description

Adobe Flash Player versions 28.0.0.161 and earlier have an exploitable type confusion vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

7.87%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-843

Affected Software

Vendor	Product	Versions
Adobe	Flash Player Desktop Runtime	<= 28.0.0.161
Adobe	Flash Player	<= 28.0.0.161

References

http://www.securityfocus.com/bid/103383Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040509Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0520Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsb18-05.htmlPatch, Vendor Advisory
http://www.securityfocus.com/bid/103383Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1040509Broken Link, Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:0520Third Party Advisory
https://helpx.adobe.com/security/products/flash-player/apsb18-05.htmlPatch, Vendor Advisory

Timeline

Published: May 19, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-4920?

Adobe Flash Player versions 28.0.0.161 and earlier have an exploitable type confusion vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.

How severe is CVE-2018-4920?

CVE-2018-4920 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 7.87% probability of exploitation in the next 30 days.

How do I fix CVE-2018-4920?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-4920?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST