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No exploitation reportedFix available

CVE-2020-9870

No exploitation reported by the sources we read.

  • Published2020-10-16
  • Fixed in13.6
  • WeaknessCWE-20

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 validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.

Timeline

dates in UTC
  1. 2020-10-1617:15CVE publishedNVD

Versions per branch

NVD
Apple ipados
BranchAffectedFixed in
13.6< 13.613.6
Apple iphone os
BranchAffectedFixed in
13.6< 13.613.6
Apple mac os x
BranchAffectedFixed in
10.15< 10.15.610.15.6

1 more product in the sources.

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

Fix

  1. Update Apple ipados to 13.6

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2020-10-16
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-899c-g9fr-8ccx

Frequently asked questions

What is CVE-2020-9870?

A logic issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.

Is CVE-2020-9870 actively exploited?

Active exploitation of CVE-2020-9870 has not been confirmed. Its EPSS score was 2.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-9870?

CVE-2020-9870 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record