CVE-2018-4878: Adobe Flash Player Use-After-Free Vulnerability

CVE-2018-4878 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2021-11-03

Adobe Flash Player contains a use-after-free vulnerability in the Primetime SDK due to a dangling pointer related to media player listener objects. A successful attack can lead to arbitrary code execution when a user interacts with malicious content.

Technologies: Adobe Flash Player. Vendors: Adobe.

Quick answers

Is CVE-2018-4878 exploited in the wild?
Yes. CVE-2018-4878 is known to be exploited in the wild, first recorded on 3 November 2021. Treat it as urgent.
How severe is CVE-2018-4878?
Critical severity, with a CVSS score of 7.8, published 3 November 2021.
Which products and versions are affected?
Adobe Flash Player before 28.0.0.161.
Is there a fix for CVE-2018-4878?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2018-4878 attacked?
It is attacked with local access, in a network appliance.
Am I affected by CVE-2018-4878?
Check whether you run Adobe Flash Player. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Adobe Flash Player before 28.0.0.161

Timeline

  • 2018-01: exploited: Exploited in the wild in January and February 2018.
  • 2021-11-03: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.

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