CVE-2009-1537 · agentprime

Unspecified vulnerability in the QuickTime Movie Parser Filter in quartz.dll in DirectShow in Microsoft DirectX 7.0 through 9.0c on Windows 2000 SP4, Windows XP SP2 and SP3, and Windows Server 2003 S…

CVSS 8.8 HighCriticalIn CISA KEVEPSS 0.51 · 98th percentile

Critical, because:

In CISA’s KEV catalogue since 20 May 2026: it is known to be exploited.
CVSS score 8.8 (7.0 or more) and EPSS 0.51 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the CVE Program (CNA: microsoft) at 29 May 2009, 18:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given	affected n/a

Identifiers

CVE-2009-1537

CNA

microsoft

Weakness (CWE)

CWE-158

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.8	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	ADP (CISA-ADP)

CISA KEV Listed since 20 May 2026: known to be exploited.
EPSS 0.51, the 98th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 29 May 2009. New records show when each source confirmed them.

Sources

References from the CNA

docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-028 vendor-advisoryms
blogs.technet.com/srd/archive/2009/05/28/new-vulnerability-in-quicktime-parsing.aspx confirm
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6237 vdb-entrysignatureoval
secunia.com/advisories/35268 third-party-advisorysecunia
www.securitytracker.com/id?1022299 vdb-entrysectrack
www.vupen.com/english/advisories/2009/1886 vdb-entryvupen
www.vupen.com/english/advisories/2009/1445 vdb-entryvupen
osvdb.org/54797 vdb-entryosvdb
www.securityfocus.com/bid/35139 vdb-entrybid
www.us-cert.gov/cas/techalerts/TA09-195A.html third-party-advisorycert
isc.sans.org/diary.html?storyid=6481
www.microsoft.com/technet/security/advisory/971778.mspx confirm
blogs.technet.com/msrc/archive/2009/05/28/microsoft-security-advisory-971778-vulnerability-in-microsoft-directshow-released.aspx confirm

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.