CVE-2021-1814
Processing a maliciously crafted image may lead to arbitrary code execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.3, watchOS 7.4. Processing a maliciously crafted image may lead to arbitrary code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.18% probability · 68th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apple/macos · apple/watchos
- Source
- product-security@apple.com
EPSS 1.2% 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
- https://support.apple.com/en-us/HT212324Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212325Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212324Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212325Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.