CISA KEV · catalog date Sep 25, 2023 · first observed Jul 19, 2026
Evidence dossier
CVE-2023-41993
The issue was addressed with improved checks.
Exploited in the wild (CISA KEV since Sep 25, 2023). NVD reports CVSS 3.1 8.8. EPSS estimates 29.2% exploit likelihood as of Aug 27, 2026.
As of Aug 27, 2026
Normalized restatement
The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
- State
- PUBLISHED
- Published
- Sep 21, 2023
- Updated
- Nov 4, 2025
- Evidence coverage
- 92%
Evidence chronology
What was known when
- Source dateSource date omittedFirst observed by CASCAappleOriginal evidence ↗
Record text: The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
Inspect raw assertion
- Field
container- Value
- The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
- Source dateSource date omittedFirst observed by CASCACISA-ADPOriginal evidence ↗
Record text: CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
- Source dateSource date omittedFirst observed by CASCACVE ProgramOriginal evidence ↗
Record text: CVE Program Container
Inspect raw assertion
- Field
container- Value
- CVE Program Container
- Source dateFirst observed by CASCACISA KEVOriginal evidence ↗
Exploitation cataloged: Apple Multiple Products WebKit Code Execution Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Apple Multiple Products WebKit Code Execution Vulnerability
- Source dateFirst observed by CASCAFIRST EPSSOriginal evidence ↗
EPSS score: 29.18% probability · 98.03th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.291790000000; percentile 0.980270000000
FIRST EPSS · score date Aug 27, 2026 · 98th percentile · first observed Aug 27, 2026
NVD · CVSS 3.1 · 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-v1Eligible evidence is present for this bounded claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Aug 27, 2026
- Resolution
- None
Eligible evidence is present for this bounded claim.
- Revision
- evidence-policy-v1.1.0
- Cutoff
- Aug 27, 2026
- Resolution
- None
Eligible evidence is present for this bounded claim.
- Revision
- casca-direct-cvss-eligibility-v1
- Cutoff
- Aug 27, 2026
- Resolution
- None
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
The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
Inspect raw assertion
- Field
container- Value
- The issue was addressed with improved checks. This issue is fixed in macOS Sonoma 14. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
CISA ADP Vulnrichment
Inspect raw assertion
- Field
container- Value
- CISA ADP Vulnrichment
CVE Program Container
Inspect raw assertion
- Field
container- Value
- CVE Program Container
Apple Multiple Products WebKit Code Execution Vulnerability
Inspect raw assertion
- Field
observed_exploitation- Value
- Apple Multiple Products WebKit Code Execution Vulnerability
29.18% probability · 98.03th percentile
Inspect raw assertion
- Field
model_probability- Value
- Probability 0.291790000000; percentile 0.980270000000
Applicability
Cited product scope
Grouped from 6 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 2026-07-21T06:45:29.809Z
27d65b0f-b718-4b4f-bb79-c47c68d09dfa - Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z
955dae73-7302-438b-aee1-058d7cc5d48e
31 scope groups
Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "lessThan": "17.0.1", "versionType": "custom"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "lessThan": "17.0.1", "versionType": "custom"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "lessThan": "14.0", "versionType": "custom"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "unspecified", "lessThan": "14", "versionType": "custom"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "11.0"}, {"status": "affected", "version": "12.0"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "11.0"}, {"status": "affected", "version": "12.0"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "38"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "39"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "37"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "*"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "*"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "*"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "0", "versionType": "custom", "lessThanOrEqual": "*"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "20.3.13"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "21.3.9"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "1.8.0"}]Canonical linkage remains open; the cited source assertion is retained below.
Inspect raw assertion
[{"status": "affected", "version": "1.8.0"}]product-8e7094ac066248cd4828b6ec8e3a96d010ed1c68f6083af46638775d737da0adLinked exactInspect raw assertion
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 0
- Logic
- OR
- Version bounds
- through excluding 17.0.1
- Match ID
4fe34465-0131-48bd-9bb6-47f83243bae3
product-665d7155d02581979844685e7fca6c2680af997f9200af455887b1c71c483272Linked exactInspect raw assertion
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 1
- Logic
- OR
- Version bounds
- through excluding 17.0.1
- Match ID
cb5fd4b4-540c-4068-90d2-bec12cdf54d9
product-d6f53ba981bb58ea2b0d24855b8ff4a18555e3a17a9dce0d38460a69537bbc63Linked exactInspect raw assertion
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 0 · node/0 · match 2
- Logic
- OR
- Version bounds
- through excluding 14.0
- Match ID
7a5dd3d5-fb4f-4313-b873-dced87fc4605
product-3ccb4bc87dfae98fa2f2a06435fe5b3d9be78572fb958a89f2d7a96b4066447eLinked exactInspect raw assertions
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 2 · node/0 · match 0
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
fa6feec2-9f11-4643-8827-749718254fed
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 2 · node/0 · match 1
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
46d69dcc-ae4d-4ea5-861c-d60951444c6c
product-c96c7662a6606ed7594747da3d7ba9ee3a9758ab11658f6a3f42616361472e47Linked exactInspect raw assertions
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 1 · node/0 · match 0
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
e30d0e6f-4ae8-4284-8716-991dfa48cc5d
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 1 · node/0 · match 2
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
b8edb836-4e6a-4b71-b9b2-aa3e03e0f646
cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 1 · node/0 · match 1
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
cc559b26-5dfc-4b7a-a27c-b77de755dff9
product-7622e4e001e04d07e68c37d95f4e8879bc2e631632b5d522e6504407a3f05f79Linked exactInspect raw assertions
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 4 · node/0 · match 0
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
e8f29e19-3a64-4426-a2aa-f169440267cc
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 4 · node/0 · match 1
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
b55e8d50-99b4-47ec-86f9-699b67d473ce
product-db820e899e28d761f515205efddd540cb023c308ae946c37ae22930ba4bcb623Linked exactInspect raw assertion
cpe:2.3:a:netapp:cloud_insights_acquisition_unit:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 4 · node/0 · match 2
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
ccaa4004-9319-478c-9d55-0e8307f872f6
product-90198fbd61598d38488d520b15a086d5c545d55a6f664f9ab3d5c0f5a5c239edLinked exactInspect raw assertion
cpe:2.3:a:netapp:cloud_insights_storage_workload_security_agent:-:*:*:*:*:*:*:*- Official link
- Linked exact
- Role
- Vulnerable target
- Configuration
- 4 · node/0 · match 3
- Logic
- OR
- Version bounds
- No explicit bounds
- Match ID
3b199052-5732-4726-b06b-a12c70dfb891
Affected-product evidence
Accepted scope and product mapping
14 canonical links · 1 source-reported links
vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-1c41069296d7ffd984f729eda4a2197f39b0ebdc11d54bd2e1f85c12eac9444e
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
27129e43-54c5-4060-b785-78f0406ebbc2ae4db15c-32c4-4a4c-9354-58a7ed33e10evendor-66ae8c5e06427f7450637d18322b0dc411c0b469d940341cf076a620d444fe3c · product-3ccb4bc87dfae98fa2f2a06435fe5b3d9be78572fb958a89f2d7a96b4066447e
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
0e0c46b4-3746-4081-afcc-5da03d85e6ab9e01a9b6-9707-4cc6-bc1d-7f570d066056vendor-8a3761f813854c6096cdd0ed4224503801e6abd1d5feb7a2d17b5429feac12b1 · product-512d40816d7f70ea0f0496be1beb732b0d8ceefdb9d8578251216bc90825615f
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
48302e89-2c7e-40b9-94a2-bd242edec620vendor-d6ed6f1e35de2e16a8a10f2ae364dab009bb2afadd609071b20da24d60ce2829 · product-665d7155d02581979844685e7fca6c2680af997f9200af455887b1c71c483272
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
ff8b9f4b-844b-4380-8baa-aaf82ef17b30vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-6bac5e5dc0babe5d628e246786e711716ddfb068132218ad0dd5123beb466ec4
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
19d9b5b2-6882-4780-b5b8-ce207e77c3devendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-6c94a14e5689a64227066e3f60eeb2b8b30045bcbf08047234f29f3fdd35d120
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
d2a4eeaa-0f37-44b9-8f88-6572cca940c5vendor-b1377626da187dbea1eeb98f365c57a3dcbeccfdc2a7d3471e94ece7b6f88e55 · product-70c0761d49c3bbe44615490ef7b613557bcd3ccdfa71d09d74202c114d277fb7
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
5d6b0add-1636-4f6a-adf9-33428ab4b292vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-7622e4e001e04d07e68c37d95f4e8879bc2e631632b5d522e6504407a3f05f79
- Source class
- Nvd cpe vulnerable target
- Assertions
- 2
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
0525f2ea-6547-438d-abe4-c588a15b0b27e3f27ad5-4738-424f-9e16-c3f4213056c0vendor-d6ed6f1e35de2e16a8a10f2ae364dab009bb2afadd609071b20da24d60ce2829 · product-8e7094ac066248cd4828b6ec8e3a96d010ed1c68f6083af46638775d737da0ad
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
e630a039-3c4d-43f2-ae1d-13d4f2ab9404vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-90198fbd61598d38488d520b15a086d5c545d55a6f664f9ab3d5c0f5a5c239ed
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
cae6db73-f327-4ab7-a718-097a80d46735vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-afac260708bb4bb1a51e28ce6b95f0356203366f8c8ffd2c790c3109033fc4fd
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
775b5219-89eb-4193-b1ad-5d82cded21devendor-2d566b06907460b10e6e48c8544126e19f1d6df137983056edae8d0b51e34e45 · product-c96c7662a6606ed7594747da3d7ba9ee3a9758ab11658f6a3f42616361472e47
- Source class
- Nvd cpe vulnerable target
- Assertions
- 3
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
456b8c5f-326e-4afb-a84b-ffb1393373c550eb427e-d24b-45b4-8f8c-65de6baeb85cdcf4b2a4-2cef-4f31-a4c3-008fa3222cf2vendor-d6ed6f1e35de2e16a8a10f2ae364dab009bb2afadd609071b20da24d60ce2829 · product-d6f53ba981bb58ea2b0d24855b8ff4a18555e3a17a9dce0d38460a69537bbc63
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
9fee99c5-1842-4173-9193-e447b85694fbvendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-db820e899e28d761f515205efddd540cb023c308ae946c37ae22930ba4bcb623
- Source class
- Nvd cpe vulnerable target
- Assertions
- 1
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
99b638f3-a61e-4c16-8870-8a249b41d5b6Canonical 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
- 17
- Mapping revision
- cpe23-exact-mapping-v1
- Observed cutoff
- Aug 27, 2026
Retained assertion IDs
013169c1-9793-4a0f-8fab-d65136270e360a2bdb4d-5c55-4a04-b986-076555244bcc17a19027-96b4-4607-8e8e-1e1376c303ff19ae5f35-78b9-4331-9c59-9a1e8527f58921ec6f3d-1df2-4b92-beb5-c5f1427023c837037287-632d-417e-abb5-225ef630190b401edae8-6a22-4abd-bf80-6e99e76ebef743b18bff-9b96-4d78-a5e7-50a9d7cf4d8e53d7d64b-f890-4a0a-afb1-bc21689b06335bd55147-1499-444a-9a76-a19fde0b9c496a5e1c8e-7458-4c40-b0fe-f6e20301bbb56ac447e6-6fc9-4544-89b9-646fdd2d5eb191de3547-b969-4824-8f66-aa6dd05974cfdc1d471f-26d7-4b74-9417-d2b2408f8b26dcfde573-83f7-4e2a-ad66-1504430ce17eeb9e02a4-ed22-4c72-ae44-651549a750eaf516fa9b-19ba-4f2d-985a-5dfd8f5306ffAssessments
CVSS by origin
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HDirect CVE/CNA normalized decisions
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.