← All detection heuristics · CVE
critical
CVE exact
CVE_2008_2551
What it means
HTML or PDF-embedded HTML configures C6 Messenger DownloaderActiveX to download and run a file.
Why it fires
CVE-2008-2551 affects the Icona/C6 Messenger DownloaderActiveX control. The rule requires the vulnerable control identity (DownloaderActiveX or CLSID c1b7e532-3ecb-4e9e-bb3a-2951ffe67c61), propDownloadUrl, and propPostDownloadAction=run. This avoids flagging generic ActiveX content.
Other CVE heuristics
CVE_2026_34621_RELATED CVE_2023_26369 CVE_2026_34621 CVE_2010_1297_FLASH_RICHMEDIA CVE_2010_1297_SWF_TRIGGER CVE_2011_0611_SWF_TRIGGER CVE_2009_1862_FLASH_RICHMEDIA CVE_2010_2883 CVE_2018_4901 CVE_2009_3459 CVE_2018_4990_JPX_EMBEDDED_CMD CVE_2018_4990_JPX_CMAP_TRIGGER CVE_2010_1240 CVE_2010_0188 CVE_2014_0514 CVE_2013_3346 CVE_2013_0640 CVE_2010_3654_FLASH_RICHMEDIA CVE_2007_5020_MAILTO_MSHTA CVE_2014_0496 CVE_2021_40444 CVE_2006_4694 CVE_2008_0118 CVE_2009_0658