CVE-2026-8509HIGH 8.8EPSS p31.4%

CVE-2026-8509CVE-2026-8509

Description

Heap buffer overflow in WebML in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Critical)

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS0.40% probability of exploitation · percentile 31.4% · 2026-06-18T12:00:27Z
Published2026-05-14
Last modified2026-05-18

Underlying weaknesses· 1

CWE-122

References

  1. https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html
  2. https://issues.chromium.org/issues/493310462

1

TypeTargetConfidenceTier
WeaknessHeap-based Buffer Overflowcwe-1220%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.