Cyber Resilience

CVE-2026-9930

MediumUpdated

Published: 28 May 2026

Published
28 May 2026
Modified
17 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS Score 0.0019 8.9th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-9930 is a medium-severity Out-of-bounds Write (CWE-787) vulnerability in Google Chrome. Its CVSS base score is 4.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Drive-by Compromise (T1189); ranked at the 8.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Out of bounds write in Dawn in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

CWE(s)
CWE-787

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1189 Drive-by Compromise Initial Access
Adversaries may gain access to a system through a user visiting a website over the normal course of browsing.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
Why these techniques?

OOB write in Chrome renderer (Dawn/WebGPU) via crafted HTML page directly enables drive-by compromise and client-side exploitation for code execution.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2023-3598Same product: Google Chrome
CVE-2022-2415Same product: Google Chrome
CVE-2020-16028Same product: Google Chrome
CVE-2020-16025Same product: Google Chrome
CVE-2022-3653Same product: Google Chrome
CVE-2021-4101Same product: Google Chrome
CVE-2022-4920Same product: Google Chrome
CVE-2022-46723Same product: Apple Macos
CVE-2022-26730Same product: Apple Macos
CVE-2021-30853Same product: Apple Macos

Affected Assets

google
chrome
≤ 148.0.7778.216

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SI-16 Memory Protection
addresses: CWE-787

Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.

References