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Public proof of conceptFix available

CVE-2020-9850

A public proof of concept exists; no exploitation attested.

  • Published2020-06-09
  • Fixed in11.2 · 7.19

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.

Timeline

dates in UTC
  1. 2020-06-0917:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-9850?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-9850?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Apple icloud
BranchAffectedFixed in
11.x≥ 11.0, < 11.211.2
7.19< 7.197.19
Apple ipados
BranchAffectedFixed in
13.5< 13.513.5
Apple iphone os
BranchAffectedFixed in
13.5< 13.513.5

4 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • dleyna-rendererRocky Linux:8all versions · fixed in 0:0.6.0-3.el8
  • dleyna-rendererAlmaLinux:8all versions · fixed in 0.6.0-3.el8
  • frei0r-pluginsRocky Linux:8all versions · fixed in 0:1.6.1-7.el8
  • frei0r-pluginsAlmaLinux:8all versions · fixed in 1.6.1-7.el8and 2 other packages
  • gnome-remote-desktopRocky Linux:8all versions · fixed in 0:0.1.8-3.el8
  • gnome-remote-desktopAlmaLinux:8all versions · fixed in 0.1.8-3.el8
  • gnome-sessionRocky Linux:8all versions · fixed in 0:3.28.1-10.el8
  • gnome-settings-daemonRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:3.32.0-11.el8and 2 other packages

82 more package ranges on OSV.dev

Vendor advisories

  • CVE-2020-9850 Red Hat Product Security70 products fixed · 9 known affected

    webkitgtk: Logic issue may lead to arbitrary code execution

    webkitgtk as a component of Red Hat Enterprise Linux 6 · webkitgtk-devel as a component of Red Hat Enterprise Linux 6 · webkitgtk-doc as a component of Red Hat Enterprise Linux 6 · +6 more

  • RHSA-2025:10364 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: webkitgtk4 security update

  • RHSA-2020:4451 Red Hat Product Security46 products fixed

    Red Hat Security Advisory: GNOME security, bug fix, and enhancement update

Full record on NVD

Fix

  1. Update Apple icloud to 11.2 · 7.19
  2. Vendor fix Red Hat Product Security RHSA-2025:10364 · 13 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  3. Vendor fix Red Hat Product Security RHSA-2020:4451 · 46 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 GDM must be restarted for this update to take effect.
  4. No fix planned, says the vendor Red Hat Product Security CVE-2020-9850 · 4 productsOut of support scope
  5. No fix planned, says the vendor Red Hat Product Security CVE-2020-9850 · 5 productsWill not fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
1 moduleexploit/osx/browser/safari_in_operator_side_effectrank: manualModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause.
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-06-09
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-9850?

A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.

Is CVE-2020-9850 actively exploited?

Active exploitation of CVE-2020-9850 has not been confirmed. Its EPSS score was 77.4% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-9850?

CVE-2020-9850 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record