Read the docs
TI-2019-06419 Aliases CVE-2019-8901GHSA-4v9x-x766-gmm3

Improper signature verification in Apple iOS and iPadOS

Priority LOW 29CWE-347Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-347.

Summary

This issue was addressed by verifying host keys when connecting to a previously-known SSH server. This issue is fixed in iOS 13.1 and iPadOS 13.1. An attacker in a privileged network position may be able to intercept SSH traffic from the “Run script over SSH” action.

Why it matters now

EPSS 0.00497 42nd percentileScored 2026-11-07
Fix Fixed iOS and iPadOS (Apple): 13.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOS and iPadOSbefore 13.113.1Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 13.1 Fixed in 13.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 13.1VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 13.1VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.1 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.1 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 13.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple iOS and iPadOS 13.1

    14 records Highest priority Priority MEDIUM 4 MEDIUM, 10 LOW

    Other records, highest priority first

    • TI-2019-06336 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2019-06315 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2019-06314 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    Show all 14 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-8901
  2. 2026-10-03 Alias added: GHSA-4v9x-x766-gmm3

References

Advisory 1

  • TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
  • 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-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
See all 2382 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences