November 3, 2021 · Applied Cybernetics Group
CVE-2018-4878 — Adobe Flash Player
known ransomware use
Adobe Flash Player Use-After-Free Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Adobe
- Product
- Flash Player
- EPSS
- 99.8th percentile (score 0.935, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-4878
CISA short description
Adobe Flash Player contains a use-after-free vulnerability that could allow for code execution.
Required action
The impacted product is end-of-life and should be disconnected if still in use.