# CVE-2021-21017: A Adobe Acrobat and Reader bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Adobe Acrobat and Reader (CVE-2021-21017) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2021-21017. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official description
Acrobat Acrobat and Reader contain a heap-based buffer overflow vulnerability that could allow an unauthenticated attacker to achieve code execution in the context of the current user.

## Sources
- https://nvd.nist.gov/vuln/detail/CVE-2021-21017
- https://nvd.nist.gov/vuln/detail/CVE-2021-21017

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.