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CVE-2009-0084
Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote attackers to execute arbitrary code via an MJPEG…
- 9.3HighCVSS base score
- 31.8%Exploitation in 30 daysEPSS · top 1.7% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Use-after-free vulnerability in DirectShow in Microsoft DirectX 8.1 and 9.0 allows remote attackers to execute arbitrary code via an MJPEG file or video stream with a malformed Huffman table, which triggers an exception that frees heap memory that is later accessed, aka "MJPEG Decompression Vulnerability."
Timeline
ID reserved
By microsoft
- 3 months later
· 3 months later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 31.8% · top 1.7% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 9.3.
Affected products
n/a
- affected n/a
References
10
- TA09-104A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- 53632 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 34665 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1022040 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- ADV-2009-1025 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- oval:org.mitre.oval:def:5618 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://support.avaya.com/elmodocs2/security/ASA-2009-132.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
- 34460 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- MS09-011 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://www.piotrbania.com/all/adv/ms-directx-mjpeg-adv.txt (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-0093 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-0084)Record last updated .