CASCACascade Atlas

Evidence dossier

CVE-2009-1537

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,…

Exploited in the wild (CISA KEV since May 20, 2026). NVD reports CVSS 2.0 9.3. EPSS estimates 51.2% exploit likelihood as of Aug 26, 2026.

82.6–83.6Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

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 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."

State
PUBLISHED
Published
May 29, 2009
Updated
May 21, 2026
Evidence coverage
99%

Evidence chronology

What was known when

Download this view's receipt →
  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    microsoft

    Record text: 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 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."

    Inspect raw assertion
    Field
    container
    Value
    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 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Microsoft DirectX NULL Byte Overwrite Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Microsoft DirectX NULL Byte Overwrite Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 51.21% probability · 98.85th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.512070000000; percentile 0.988490000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date May 20, 2026 · first observed Jul 19, 2026

Exploit likelihood51.21%

FIRST EPSS · score date Aug 26, 2026 · 98.8th percentile · first observed Aug 26, 2026

SeverityCVSS 9.3

NVD · CVSS 2.0 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
microsoftOriginal assertion
Record text

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 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."

Inspect raw assertion
Field
container
Value
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 SP2 allows remote attackers to execute arbitrary code via a crafted QuickTime media file, as exploited in the wild in May 2009, aka "DirectX NULL Byte Overwrite Vulnerability."
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Microsoft DirectX NULL Byte Overwrite Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Microsoft DirectX NULL Byte Overwrite Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

51.21% probability · 98.85th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.512070000000; percentile 0.988490000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
22Underlying assertions
5Canonical products
22Target assertions
0Constraint assertions

Grouped from 4 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

6 scope groups

microsoft · source assertedn/an/aDirect source scope
Affected: n/a
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
NVD CPE · APPLICATIONmicrosoftdirectxVulnerable target · 13 assertions
Version 7.0; Version 7.0a; Version 7.1; Version 8.1; Version 8.1b; Version 9.0; Version 9.0a; Version 9.0b; Version 9.0cCanonical identity product-25324de47278719c4bc0b245ae6288ce437622a58dbc33fd9c65fa8a8aa55e62Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:microsoft:directx:8.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    8ff0278f-afa7-48ba-8762-5569ec174aee
  2. cpe:2.3:a:microsoft:directx:9.0b:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    70a8e96e-f752-43d2-83c3-877de1042b80
  3. cpe:2.3:a:microsoft:directx:9.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2936e9c2-65e6-4d26-a277-ff2ae13a3fec
  4. cpe:2.3:a:microsoft:directx:9.0c:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 8
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    44c68b75-2b7a-450b-ba1b-03e77e03b59b
  5. cpe:2.3:a:microsoft:directx:7.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4f01f75d-4c20-4da2-bd3b-4a3bd466f773
  6. cpe:2.3:a:microsoft:directx:9.0c:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    44c68b75-2b7a-450b-ba1b-03e77e03b59b
  7. cpe:2.3:a:microsoft:directx:9.0b:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    70a8e96e-f752-43d2-83c3-877de1042b80
  8. cpe:2.3:a:microsoft:directx:7.0a:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    459d411c-4994-41db-9594-f460eada3351
  9. cpe:2.3:a:microsoft:directx:8.1b:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1bbfbda6-90f5-4a8a-bd47-2dca5ca8d5aa
  10. cpe:2.3:a:microsoft:directx:9.0a:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b2f096a3-dd19-4d54-94f4-027dbdf1a705
  11. cpe:2.3:a:microsoft:directx:9.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2936e9c2-65e6-4d26-a277-ff2ae13a3fec
  12. cpe:2.3:a:microsoft:directx:9.0a:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b2f096a3-dd19-4d54-94f4-027dbdf1a705
  13. cpe:2.3:a:microsoft:directx:7.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2bfe77b9-6c2a-45d3-a4b5-2679cc4b0da2
NVD CPE · OPERATING SYSTEMmicrosoftwindows_2000Vulnerable target · 2 assertions
Any version (unconstrained)Canonical identity product-36bcd12b0d9b78c1cb73603dd8250bb89a31af0321e0d48f233e7fc7c9a9fb80Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    83e7c4a0-78cf-4b56-82bf-ec932bdd8adf
  2. cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    83e7c4a0-78cf-4b56-82bf-ec932bdd8adf
NVD CPE · OPERATING SYSTEMmicrosoftwindows_2003_serverVulnerable target · 3 assertions
Any version (unconstrained)Canonical identity product-f3413ed5ab0f01a0a5141c3dbfdb0136c0a4860172d1e218fc470e8e3c58bd07Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2978bf86-5a1a-438e-b81f-f360d0e30c9c
  2. cpe:2.3:o:microsoft:windows_2003_server:*:sp2:itanium:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f7efb032-47f4-4497-b16b-cb9126eac9df
  3. cpe:2.3:o:microsoft:windows_2003_server:*:sp2:x64:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    6881476d-81a2-4dfd-ac77-82a8d08a0568
NVD CPE · OPERATING SYSTEMmicrosoftwindows_server_2003Vulnerable target · 1 assertions
Any version (unconstrained)Canonical identity product-21c8a455c6651c09ac3fd0874c5219dd6081913f4835e8de22662b3821fec60bLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4d3b5e4f-56a6-4696-bbb4-19df3613d020
NVD CPE · OPERATING SYSTEMmicrosoftwindows_xpVulnerable target · 3 assertions
Any version (unconstrained); Version not applicableCanonical identity product-64e458557132a0a0a8bbaccf808d742614fb319511c19c0d45dd39b15a52fcc7Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    c6109348-bc79-4ed3-8d41-ea546a540c79
  2. cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    9b339c33-8896-4896-88ff-88e74fdbc543
  3. cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/1 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    ce477a73-4ee4-41e9-8694-5a3d5dc88656

Affected-product evidence

Accepted scope and product mapping

5 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-21c8a455c6651c09ac3fd0874c5219dd6081913f4835e8de22662b3821fec60b

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
5a95b065-b35d-425c-b485-e078f55e88d7
Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-25324de47278719c4bc0b245ae6288ce437622a58dbc33fd9c65fa8a8aa55e62

Source class
Nvd cpe vulnerable target
Assertions
13
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
0ec17835-258f-4c65-aa85-34a70698d804167e4945-eded-4b9d-876c-adfd23a9e62f213d3bfc-be70-4def-bc1e-e726cfef183b24aa0a57-a94a-4f2a-a9ab-bc9dad9972533b5c6a55-f56e-468c-a7be-c46a7fafe1b46f4cc5ca-4e86-4164-a91b-3db84770327191584c24-f8dc-44d2-882f-423fbd692f139ee7f331-d338-4e4d-bbac-5e12727dc9c9a0f428b3-e528-4f4f-a489-69dba2e89e54a2c7536a-7571-4d0d-b925-6cf2f010caa2a54d89b1-cfab-4de2-9b17-d2acfed5ee56e129d077-3d3b-4b8e-abd8-d73756caf66de449b5f4-d5b3-4bee-87c3-c52162a6b98e
Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-36bcd12b0d9b78c1cb73603dd8250bb89a31af0321e0d48f233e7fc7c9a9fb80

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
9dbd2879-177b-4499-a661-31988bad773bab64bc19-f136-48be-86ca-c75cd15e3a9a
Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-64e458557132a0a0a8bbaccf808d742614fb319511c19c0d45dd39b15a52fcc7

Source class
Nvd cpe vulnerable target
Assertions
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
175f4966-8ea3-47c8-a79d-cceab44f389f4f8056e2-00f9-43ed-90f0-ca05d0604a95bc42de4e-0fb7-4c73-b126-94893efcb613
Mapping establishedEvidence supported

vendor-01299a5a765aea70faa05f2d06e0c26a5d498fd34553e868d89e8a43b31864db · product-f3413ed5ab0f01a0a5141c3dbfdb0136c0a4860172d1e218fc470e8e3c58bd07

Source class
Nvd cpe vulnerable target
Assertions
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
106293f9-42da-44fb-b147-f8bebc95e8031ce4faff-d2f7-4ac0-9381-484414200a9fd6a1aff2-1a20-485c-b428-c3f15ad0493b
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
5adf0c46-ec04-4bf8-90f1-c826dc4dc5f9

Assessments

CVSS by origin

9.3
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:M/Au:N/C:C/I:C/A:C
8.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.