Buffer overflow in Apple macOS
CVE-2026-4444
Stack buffer overflow in WebRTC in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit stack corruption via a crafted HTML page. (Chromium security severity: High)
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (27.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Apple macOS
- Google Chrome — versions 146.0.7680.153
- Linux Kernel
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html (Release Notes, Vendor Advisory)
- issues.chromium.org/issues/486349161 (Permissions Required, Issue Tracking)
Frequently asked questions
- What is CVE-2026-4444?
- CVE-2026-4444 is a high-severity vulnerability in Apple macOS, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2026-03-20.
- How severe is CVE-2026-4444?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2026-4444 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.