VulnerabilityModified
CVE-2026-20620
An out-of-bounds read issue was addressed with improved input validation.
HIGH 7.7EPSS 0.20%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An attacker may be able to cause unexpected system termination or read kernel memory.
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.20% probability · 10th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- apple/macos
- Source
- product-security@apple.com
References
- https://support.apple.com/en-us/126348Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126349Release Notes, Vendor Advisory
- https://support.apple.com/en-us/126350Release Notes, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.