Adobe Flash Player Use-After-Free Vulnerability (CVE-2018-4878)
Severity: high · Patch status: unpatched · Since 2021-11-03 · CVE-2018-4878
Adobe Flash Player contains a use-after-free vulnerability that could allow for code execution. CISA added CVE-2018-4878 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What to do
- The impacted product is end-of-life and should be disconnected if still in use.
- US federal agencies must remediate by May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
