Back to CVE records
High 7.8Published Sep 14, 2026
CVE-2026-84515An out-of-bounds write issue was addressed with improved bounds checking.
Updated under an hour ago ()
Does this affect you?
It affects Apple macOS. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Start free and add your stack
Free account, 1 product
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to kernel memory corruption.
- CVSS
- 7.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple macOS apple:macos (from the name) | before 15.8; before 26.7; before 27 | CNA record |
apple macos apple:macos | from 15.0 before 15.8; from 26.0 before 26.7 | NVD |
References
- https://support.apple.com/en-us/149035release-notes, vendor-advisory
- https://support.apple.com/en-us/149042release-notes, vendor-advisory
- https://support.apple.com/en-us/149043release-notes, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.