high Known exploitedREV. 01
CVE-2009-1537Microsoft DirectShow — QuickTime parser flaw to code execution
The QuickTime movie parser in Microsoft's DirectShow media component mishandles a crafted media file, so opening one on the affected legacy Windows releases runs the attacker's code with the privileges of the user who opened it.
Read the risk
THE VITAL STATS- CVSS score
- 8.8/ 10 CVSS v3.1
- EPSS probability
- 51% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2009-05-29
- Added to KEV
- 2026-05-20
- Exploit published
- Not recorded
- Confidence
- high
- Kill chain
- execution
- MITRE ATT&CK
- —
- Severity
- high
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attacker needsThe user must open an attacker-supplied media file on an affected legacy Windows release.
Behind the card
5 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Vendor advisoryblogs.technet.comblogs.technet.com
- 04Vendor advisoryblogs.technet.comblogs.technet.com
- 05Vendor advisorysecunia.comsecunia.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-24 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-24 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.