CVE-2026-7978HIGH 8.1EPSS p14.4%

CVE-2026-7978CVE-2026-7978

Description

Inappropriate implementation in Companion in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to perform OS-level privilege escalation via malicious network traffic. (Chromium security severity: Medium)

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.24% probability of exploitation · percentile 14.4% · 2026-06-19T12:03:05Z
Published2026-05-06
Last modified2026-05-06

Underlying weaknesses· 1

CWE-693

References

  1. https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html
  2. https://issues.chromium.org/issues/497828892

1

TypeTargetConfidenceTier
WeaknessProtection Mechanism Failurecwe-6930%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-11677
CVE
CVE-2025-13631
CVE
CVE-2026-11229
CVE
CVE-2026-9885
CVE
CVE-2026-10969
CVE
CVE-2026-11308
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.