# CASCA evidence receipt — CVE-2013-3660

- Generation: `gen-409cbd0c74ff4feb70e4944e6b98ce40`
- As known: 2026-07-21T08:13:17.697275+00:00
- Comparison: gen-56ccdaf914f7b4be95b689ccae7dc20d
- Score policy: public-priority-v1.0.1
- Conflict: present

## Source assertions

- **CISA-ADP** (independent_enrichment): container — CISA ADP Vulnrichment
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2013-3660
- **CVE** (derivative_copy): container — CVE Program Container
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2013-3660
- **mitre** (original_assertion): container — The EPATHOBJ::pprFlattenRec function in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 does not properly initialize a pointer for the next object in a certain list, which allows local users to obtain write access to the PATHRECORD chain, and consequently gain privileges, by triggering excessive consumption of paged memory and then making many FlattenPath function calls, aka "Win32k Read AV Vulnerability."
  - Observed: 2026-07-19T04:27:06.398189+00:00
  - Citation: https://www.cve.org/CVERecord?id=CVE-2013-3660
- **CISA KEV** (original_assertion): observed_exploitation — Microsoft Win32k Privilege Escalation Vulnerability
  - Observed: 2026-07-19T04:54:04.25158+00:00
  - Citation: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- **FIRST EPSS** (original_assertion): model_probability — Probability 0.395780000000; percentile 0.984550000000
  - Observed: 2026-07-19T04:54:35.756809+00:00
  - Citation: https://www.first.org/epss/data_stats.html

## CVSS assessments

- **nvd@nist.gov** (Primary, CVSS 3.1): 7.8 — score eligible
  - Evidence class: nvd_enrichment_exact; source rank: 0
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
- **nvd@nist.gov** (Primary, CVSS 2.0): 6.9 — score eligible
  - Evidence class: nvd_enrichment_exact; source rank: 0
  - Validation: valid_match
  - Vector: `AV:L/AC:M/Au:N/C:C/I:C/A:C`
- **134c704f-9b21-4f2e-91b3-4a467353bcc0** (Secondary, CVSS 3.1): 7.8 — score eligible
  - Evidence class: registered_adp_or_other; source rank: 2
  - Validation: valid_match
  - Vector: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`
- **CISA-ADP** (unknown, CVSS 3.1): 7.8 — display only
  - Evidence class: direct_cve_record_display_only; source rank: not applicable
  - Validation: display-only direct record assessment
  - Vector: `CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`

## Applicability scope

- **n/a · n/a** (direct_source; unknown)
  - Versions: [{"status": "affected", "version": "n/a"}]
- **microsoft · windows_7** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-f20a05098a41a238f96b56b817d0482887bb39ad40620198bbe05da10ee02ffc`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*`
- **microsoft · windows_8** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-5a559e3d4b779565d6fa99223972e75a4cba4d476b27b830a78ab8eb44d5bef2`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*`
- **microsoft · windows_rt** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-f2e843a0733f87d1fbdb9ac1bcb919b5de195839b7bcb2713e04543f626be126`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*`
- **microsoft · windows_server_2003** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-21c8a455c6651c09ac3fd0874c5219dd6081913f4835e8de22662b3821fec60b`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*`
- **microsoft · windows_server_2008** (vulnerable_target; supported)
  - Versions: Version not applicable; Version r2
  - Canonical identity: `product-217b1ab3d25f361a639824f86753d418b35aa2a816ee370bb71b5d1dd883d87a`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*`
- **microsoft · windows_server_2012** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-5a80416e92fed0cddbb3d4f3840218b448dee11159824ad25a0353da566963fe`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*`
- **microsoft · windows_vista** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-c6332934cac78bf2604a03402cb66568f867ce86c773d4333d1205e477bf93a9`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:*`
- **microsoft · windows_xp** (vulnerable_target; supported)
  - Versions: Version not applicable
  - Canonical identity: `product-64e458557132a0a0a8bbaccf808d742614fb319511c19c0d45dd39b15a52fcc7`
  - Official link states: linked_exact
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*`
  - Criterion (linked_exact, vulnerable_target): `cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*`

## Identity source boundaries

- **cpe_dictionary**: 1775266 records through 2026-07-21T06:45:29.809553+00:00
  - Run: `27d65b0f-b718-4b4f-bb79-c47c68d09dfa`
- **cpe_match**: 643502 records through 2026-07-21T08:13:17.697275+00:00
  - Run: `955dae73-7302-438b-aee1-058d7cc5d48e`

## Limitations and unknowns

- 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; unresolved scope remains unknown.
- NVD-carried upstream facts remain derivative and are not independent corroboration.
- 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.
- Factor D remains unknown because WC-03 has not converted canonical CPE mappings into generation-bound mapping obligations; canonical identity alone does not score applicability.
- Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.

Generated from CASCA normalized evidence. This receipt is not proof that an asset is affected, unaffected, safe, or fixed.