CVE-2009-0556: The 2009 PowerPoint But that Refuses to Die
ID: 123bed4a-b885-5bec-8448-19ecb62e2766
STIX ID: report--123bed4a-b885-5bec-8448-19ecb62e2766
Feed Name: LevelBlue SpiderLabs Blog
Threat Score
The report revisits CVE-2009-0556, a memory-corruption/code-injection flaw in older Microsoft PowerPoint versions, highlighting that its addition to the CISA KEV catalog in January 2026 signals renewed operational relevance; organizations should assume continued adversary interest, decommission or strictly isolate legacy systems, and apply compensating controls where patches cannot be deployed.
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