CASCACascade Atlas

Evidence dossier

CVE-2019-8720

CVE-2019-8720

64.5–79.5Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

State
PUBLISHED
Published
Mar 6, 2023
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS1.54%

2026-07-18 · v2026.06.15 · percentile 72.2%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

redhatoriginal assertion
container

A vulnerability was found in WebKit. The flaw is triggered when processing maliciously crafted web content that may lead to arbitrary code execution. Improved memory handling addresses the multiple memory corruption issues.

CISA KEVoriginal assertion
observed_exploitation

WebKitGTK Memory Corruption Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.015430000000; percentile 0.721830000000

Applicability

Cited product scope

Trace impact →
n/awebkitgtk
[{"status": "affected", "version": "Fixed in webkitgtk 2.26.0"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_arm64_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:a:webkitgtk:webkitgtk:*:*:*:*:*:*:*:*; end excluding 2.26.0supported
Unknown vendorUnknown product
cpe:2.3:a:wpewebkit:wpe_webkit:*:*:*:*:*:*:*:*; end excluding 2.26.0supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:arm64:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_arm64_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.4:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:8.6:*:*:*:*:*:*:*supported
Unknown vendorUnknown product
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

8.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS: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 unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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 is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.