CVE-2021-30721
An attacker in a privileged network position may be able to leak sensitive user information.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 24.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
A path handling issue was addressed with improved validation. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An attacker in a privileged network position may be able to leak sensitive user information.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 24.29% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apple/mac os x · apple/macos
- Source
- product-security@apple.com
EPSS 24.3% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://support.apple.com/en-us/HT212529Vendor Advisory
- https://support.apple.com/en-us/HT212530Vendor Advisory
- https://support.apple.com/en-us/HT212531Vendor Advisory
- https://support.apple.com/en-us/HT212529Vendor Advisory
- https://support.apple.com/en-us/HT212530Vendor Advisory
- https://support.apple.com/en-us/HT212531Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.