CVE-2021-30888

7.4 HIGH 2% exploit odds Fix listed

What it is

An information leakage issue was addressed. This issue is fixed in iOS 15.1 and iPadOS 15.1, macOS Monterey 12.0.1, iOS 14.8.1 and iPadOS 14.8.1, tvOS 15.1, watchOS 8.1. A malicious website using Content Security Policy reports may be able to leak information via redirect behavior .

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. High risk of data exposure.
Exploit odds: 1.7% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-08-24 19:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:51 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.7% in the next 30 days (EPSS).
Severity: 7.4 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-08-24 19:15 UTC
Last modified: 2026-06-17 03:51 UTC
Exploit probability: 1.7% · EPSS, next 30 days
Weakness: CWE-601
Record status: Modified

Affected

Apple Ipad Os < 14.8.1
Apple Ipados 15.0
Apple Iphone Os < 14.8.1
Apple Iphone Os 15.0
Apple macOS < 12.0.1
Apple Tvos < 15.1
Apple Watchos < 8.1

Attack profile CVSS 3.1 · 7.4

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Changed
Confidentiality: High
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-30888.md and follow it. Check whether this project is affected by CVE-2021-30888. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

· More options · Status badge

Download Square Reddit

References

NVD record · CVE.org record