Out-of-bounds Read in Apple macOS
CVE-2026-26127
Out-of-bounds read in .NET allows an unauthorized attacker to deny service over a network.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 66.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.012 · change: -0.009
Affected products
- Apple macOS
- Linux Kernel
- Microsoft Bcl.memory
- Microsoft Microsoft.bcl.memory — versions 10.0.0, 9.0.0
- Microsoft .Net
- Microsoft .Net 10.0 — versions 10.0.0
- Microsoft .Net 9.0 — versions 9.0.0
- Microsoft Windows
Weakness classification (CWE)
References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26127 (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-26127?
- CVE-2026-26127 is a high-severity vulnerability in Apple macOS, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-03-10.
- How severe is CVE-2026-26127?
- High severity. CVSS v3 base score is 7.5 out of 10.