Cross-site scripting in Apple watchOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 9 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-79.
Summary
A logic issue was addressed with improved state management. This issue is fixed in watchOS 6.1. Processing maliciously crafted web content may lead to universal cross site scripting.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | watchOS | before watchOS 6.1 | watchOS 6.1 | Patch available | CNA |
- watchOS VendorApple Affected before watchOS 6.1 Fixed in watchOS 6.1 Patch available CNA
Remediation
- Fix · CNA watchOS (Apple) Fixed in watchOS 6.1
Red Hat 2 advisories
- RHSA-2020:4451 Released 2020-11-04 · Red Hat rating ModerateGNOME security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) LibRaw-devel-0.19.5-2.el8
- Red Hat Enterprise Linux AppStream (v. 8) LibRaw-0.19.5-2.el8, gnome-settings-daemon-3.32.0-11.el8, webkit2gtk3-2.28.4-1.el8 +3
- RHSA-2020:4035 Released 2020-09-29 · Red Hat rating Moderatewebkitgtk4 security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7
- Red Hat Enterprise Linux Client Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-doc-2.28.2-2.el7, webkitgtk4-jsc-devel-2.28.2-2.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-doc-2.28.2-2.el7, webkitgtk4-jsc-devel-2.28.2-2.el7
- Red Hat Enterprise Linux Server (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-2.28.2-2.el7.ppc, webkitgtk4-devel-2.28.2-2.el7 +3
- Red Hat Enterprise Linux Server Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-devel-2.28.2-2.el7.ppc, webkitgtk4-doc-2.28.2-2.el7 +2
- Red Hat Enterprise Linux Workstation (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7 +1
- Red Hat Enterprise Linux Workstation Optional (v. 7) webkitgtk4-doc-2.28.2-2.el7
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Apple watchOS — GLSA-202003-22
9 records Highest priority Priority MEDIUM 8 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2019-06380 Out-of-bounds write in Apple iOSPriority MEDIUM 50
- TI-2019-06328 Out-of-bounds write in Apple watchOSPriority MEDIUM 48
- TI-2019-06377 Out-of-bounds write in Apple iOSPriority MEDIUM 43
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:4451 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:4035 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:4035 |
Not affected: 3 products
- Red Hat CodeReady Linux Builder (v. 8)
- Red Hat Enterprise Linux AppStream (v. 8)
- Red Hat Enterprise Linux BaseOS (v. 8)
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8764
- 2026-10-03 Alias added: GHSA-8g88-79gg-9jfg
References
More Apple Watchos vulnerabilities
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-28228 Use after free in Apple Safari KEVCVSS 3.1HIGH 8.8
- TI-2025-22512 Memory corruption in Apple Safari KEVCVSS 3.1HIGH 8.8
- TI-2025-12953 Memory corruption in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2019-8764 · CVE Program
- CVE-2019-8764 · NVD
- FIRST EPSS
- GHSA-8g88-79gg-9jfg · GitHub Advisory Database · CC BY 4.0
- CVE-2019-8764 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences