What is CVE-2018-4878?

CVE-2018-4878 is a high-severity vulnerability in Adobe Flash_player, classified under Use After Free. CVSS score: 7.8/10. Published 2018-02-06.

How severe is CVE-2018-4878?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2018-4878 known to be exploited?

Yes. CVE-2018-4878 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 131 public proof-of-concept repositories are indexed.

Use After Free in Adobe Flash_player

CVE-2018-4878

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 l…

Vulnerability class: Use-After-Free

EPSS: 0.895 (99.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Adobe Flash_player
Apple Macos
Google Chrome_os
Linux Linux_kernel
Microsoft Windows
Microsoft Windows_10
Microsoft Windows_8.1
Redhat Enterprise_linux_desktop — versions 6.0
Redhat Enterprise_linux_server — versions 6.0
Redhat Enterprise_linux_workstation — versions 6.0

Weakness classification (CWE)

CWE-416 — Use After Free

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: The impacted product is end-of-life and should be disconnected if still in use.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

psirt@adobe.com (Technical Description, Third Party Advisory, x_refsource_MISC)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC)
psirt@adobe.com (x_refsource_MISC, Vendor Advisory)
psirt@adobe.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
psirt@adobe.com (vdb-entry, x_refsource_SECTRACK, Broken Link)
psirt@adobe.com (vdb-entry, Broken Link, x_refsource_BID)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC, Press/Media Coverage)
psirt@adobe.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-4878?: CVE-2018-4878 is a high-severity vulnerability in Adobe Flash_player, classified under Use After Free. CVSS score: 7.8/10. Published 2018-02-06.
How severe is CVE-2018-4878?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2018-4878 known to be exploited?: Yes. CVE-2018-4878 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 131 public proof-of-concept repositories are indexed.