Cleartext transmission of sensitive information in Apple iOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-319.
Summary
The issue was addressed with improved UI handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, Safari 13.0.5. A local user may unknowingly send a password unencrypted over the network.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS | before iOS 13.3.1 and iPadOS 13.3.1 | iOS 13.3.1 and iPadOS 13.3.1 | Patch available | CNA |
| Apple | Safari | before Safari 13.0.5 | Safari 13.0.5 | Patch available | CNA |
Remediation
- Fix · CNA iOS (Apple) Fixed in iOS 13.3.1 and iPadOS 13.3.1
- Fix · CNA Safari (Apple) Fixed in Safari 13.0.5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iOS iOS 13.3.1 and iPadOS 13.3.1
25 records Highest priority Priority CRITICAL 1 CRITICAL, 2 MEDIUM, 22 LOW
Other records, highest priority first
- TI-2020-03339 Out-of-bounds write in Apple iOSPriority CRITICAL 93
- TI-2020-03348 Memory corruption in Apple iOSPriority MEDIUM 42
- TI-2020-03328 Out-of-bounds write in Apple iOSPriority MEDIUM 41
- Release ·
Apple Safari Safari 13.0.5
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2020-03328 Out-of-bounds write in Apple iOSPriority MEDIUM 41
- TI-2020-03335 Apple Safari: Visiting a malicious website may lead to address bar spoofingPriority LOW 21
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3841
- 2026-10-03 Alias added: GHSA-237h-5fc4-8x3g
References
More Apple Ipados vulnerabilities
- 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
Sources
- CVE-2020-3841 · CVE Program
- CVE-2020-3841 · NVD
- FIRST EPSS
- GHSA-237h-5fc4-8x3g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences