CVE-2021-1873

6.5 MEDIUM 1% exploit odds Fix listed

What it is

An API issue in Accessibility TCC permissions was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to unexpectedly leak a user's credentials from secure text fields.

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: 1.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-09-08 15:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:32 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.2% in the next 30 days (EPSS).
Severity: 6.5 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-09-08 15:15 UTC
Last modified: 2026-06-17 03:32 UTC
Exploit probability: 1.2% · EPSS, next 30 days
Record status: Modified

Affected

Apple Mac Os X ≤ 10.14.5
Apple Mac Os X ≤ 10.15.5
Apple Mac Os X 10.14.6
Apple Mac Os X 10.15.6
Apple Mac Os X 10.15.7
Apple macOS < 11.3

Attack profile CVSS 3.1 · 6.5

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

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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-2021-1873.md and follow it. Check whether this project is affected by CVE-2021-1873. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record