HOMEVULNERABILITIESCVE-2019-8531
CRITICAL

CVE-2019-8531

CWE-295Published: October 27, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation. This issue is fixed in watchOS 5.2, macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2. An untrusted radius server certificate may be trusted.

NVD Source

Technical Analysis

CVE-2019-8531 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Apple3 product(s)
iphone osmac os xwatchos
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://support.apple.com/en-us/HT209599
ADVISORYhttps://support.apple.com/en-us/HT209600
ADVISORYhttps://support.apple.com/en-us/HT209602
ADVISORYhttps://support.apple.com/en-us/HT209599
ADVISORYhttps://support.apple.com/en-us/HT209600
ADVISORYhttps://support.apple.com/en-us/HT209602

All References (6)

→
https://support.apple.com/en-us/HT209599Vendor Advisory
→
https://support.apple.com/en-us/HT209600Vendor Advisory
→
https://support.apple.com/en-us/HT209602Vendor Advisory
→
https://support.apple.com/en-us/HT209599Vendor Advisory
→
https://support.apple.com/en-us/HT209600Vendor Advisory
→
https://support.apple.com/en-us/HT209602Vendor Advisory

Quick Facts

CVE IDCVE-2019-8531
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-295
CISA KEVNo
Affected1 vendor(s)
PublishedOct 27, 2020

Related CVEs (CWE-295)

CVE-2026-4370
10.0
CVE-2022-45597
9.8
CVE-2021-40855
9.8
CVE-2022-31183
9.8
CVE-2022-37437
9.8
CVE-2023-42425
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-8531 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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