CVE-2018-15982: Adobe Flash Player Use-After-Free Vulnerability

Vulnerability summary

CVE-2018-15982 is a high (CVSS 10.0) Use After Free vulnerability in Adobe Flash Player. It is known to be exploited: CISA lists it, first on 15-02-2022. It has been used in ransomware campaigns. EPSS estimates a 89.58% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 18-01-2019
   PublishedVulnerability first disclosed.
2. 15-02-2022
   Added to CISA KEVAdobe Flash Player Use-After-Free Vulnerability
3. 15-08-2022
   CISA remediation dueThe impacted product is end-of-life and should be disconnected if still in use.
4. 01-10-2026
   Last modifiedVulnerability information updated.

Description

Flash Player versions 31.0.0.153 and earlier, and 31.0.0.108 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.