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ExploitedIn CISA KEVFix available

CVE-2019-8506

Exploitation confirmed. First attested on 2022-05-04 by CISA-ADP, CISA KEV, GCVE · kevintel.

  • Published2019-12-18
  • Fixed in7.11
  • WeaknessCWE-843

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 type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Timeline

dates in UTC
  1. 2019-04-03Exploit-DB entryExploit-DB
  2. 2019-12-1818:15CVE publishedNVD
  3. 2022-05-04Added to the CISA KEV catalogCISA KEV
  4. 2022-05-04Listed as exploited by GCVEGCVE
  5. 2022-05-04Exploitation first reportedCISA KEV
  6. 2025-01-2917:41SSVC exploitation set to activeCISA-ADP

Observed activity

isMalicious corpus · updated 2026-11-03 03:37 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-2019-8506?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-8506?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
7.11< 7.117.11
Apple iphone os
BranchAffectedFixed in
12.2< 12.212.2
Apple itunes
BranchAffectedFixed in
12.9< 12.9.412.9.4

6 more products in the sources.

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

Products declared by the CNA6 products

As apple, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Apple iOS
    Affected
    • < iOS 12.2fixed in iOS 12.2custom
  • Apple tvOS
    Affected
    • < tvOS 12.2fixed in tvOS 12.2custom
  • Apple watchOS
    Affected
    • < watchOS 5.2fixed in watchOS 5.2custom
  • Apple Safari
    Affected
    • < Safari 12.1fixed in Safari 12.1custom
  • Apple iTunes for Windows
    Affected
    • < iTunes 12.9.4 for Windowsfixed in iTunes 12.9.4 for Windowscustom
  • Apple iCloud for Windows
    Affected
    • < iCloud for Windows 7.11fixed in iCloud for Windows 7.11custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2019-12-18

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

  • accountsserviceRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:0.6.50-7.el8and 4 other packages
  • accountsservice-develRed Hat:enterprise_linux:8::crball versions · fixed in 0:0.6.50-7.el8and 3 other packages
  • appstream-dataRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:8-20190805.el8
  • baobabRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:3.28.0-2.el8and 2 other packages
  • chrome-gnome-shellRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:10.1-6.el8
  • evinceRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:3.28.4-3.el8and 8 other packages
  • file-rollerRed Hat:enterprise_linux:8::appstreamall versions · fixed in 0:3.28.1-2.el8and 2 other packages
  • gdk-pixbuf2Rocky Linux:8all versions · fixed in 0:2.36.12-5.el8

70 more package ranges on OSV.dev

Vendor advisories

  • CVE-2019-8506 Red Hat Product Security1,407 products fixed · 9 known affected

    webkitgtk: malicous web content leads 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-2020:4035 Red Hat Product Security81 products fixed

    Red Hat Security Advisory: webkitgtk4 security, bug fix, and enhancement update

  • RHSA-2019:3553 Red Hat Product Security903 products fixed

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

Full record on NVD

Fix

  1. Update Apple icloud to 7.11
  2. CISA’s required action: Apply updates per vendor instructions.due 2022-05-25
  3. Vendor fix Red Hat Product Security RHSA-2020:4035 · 81 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. No fix planned, says the vendor Red Hat Product Security CVE-2019-8506 · 4 productsOut of support scope
  5. No fix planned, says the vendor Red Hat Product Security CVE-2019-8506 · 5 productsWill not fix

Advisories and patches

Detection

read 2026-11-02 22:42 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
EDB-46647
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

CISA Known Exploited Vulnerability

Date Added
2022-05-04
Patch Due Date
2022-05-25
Ransomware Use
Unknown
Required Action
Apply updates per vendor instructions.

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2019-12-18
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-fg7h-q67h-82rg

Frequently asked questions

What is CVE-2019-8506?

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Is CVE-2019-8506 actively exploited?

Yes. CVE-2019-8506 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-25.

What is the CVSS score for CVE-2019-8506?

CVE-2019-8506 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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Sources for this record