VulnerabilityModified

CVE-2021-30897

A malicious website may exfiltrate data cross-origin.

MEDIUM 6.5EPSS 1.71%

Does this matter?

Lower severity and a low EPSS score (1.71%). Track it; it rarely justifies an emergency change on its own.

Description

An issue existed in the specification for the resource timing API. The specification was updated and the updated specification was implemented. This issue is fixed in macOS Monterey 12.0.1. A malicious website may exfiltrate data cross-origin.

CVSS 3.1: 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS: 1.71% probability · 77th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Affected: apple/ipados · apple/iphone os · apple/macos · apple/tvos
Source: product-security@apple.com

EPSS trend

EPSS 1.7% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.