Vulnerability in Apple macOS
CVE-2026-47304
Improper verification of cryptographic signature in .NET allows an unauthorized attacker to bypass a security feature over a network.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Apple macOS
- Linux Kernel
- Microsoft .Net Framework 3.5 — versions 3.5.0
- Microsoft .Net Framework 3.5 And 4.7.2 — versions 4.7.0
- Microsoft .Net Framework 3.5 And 4.8 — versions 4.8.0
- Microsoft .Net Framework 3.5 And 4.8.1 — versions 4.8.1
- Microsoft .Net Framework 4.6.2/4.7/4.7.1/4.7.2 — versions 4.7.0
- Microsoft .Net Framework 4.8 — versions 4.8.0
- Microsoft .Net Framework 4.8.1 — versions 4.8.0.0
- Microsoft Visual Studio 2017 Version 15.9 (Includes 15.0 - 15.8)
Weakness classification (CWE)
References
- .NET Security Feature Bypass Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-47304?
- CVE-2026-47304 is a high-severity vulnerability in Apple macOS, classified under Insufficient Verification of Data Authenticity. CVSS score: 8.1/10. Published 2026-07-14.
- How severe is CVE-2026-47304?
- High severity. CVSS v3 base score is 8.1 out of 10.