# CVE-2009-0556: A Microsoft Office bug is being used in attacks

Status: Being used now (CISA KEV, added 2026-01-07)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Microsoft Office (CVE-2009-0556) 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-2009-0556. 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
Microsoft Office PowerPoint contains a code injection vulnerability that allows remote attackers to execute arbitrary code via a PowerPoint file with an OutlineTextRefAtom containing an invalid index value that triggers memory corruption.

## Sources
- https://learn.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-017
- https://nvd.nist.gov/vuln/detail/CVE-2009-0556
- https://nvd.nist.gov/vuln/detail/CVE-2009-0556

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