How severe is CVE-2026-11230?

CVE-2026-11230 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-11230 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-11230?

CVE-2026-11230 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-11230?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-11230 have an EU (EUVD) identifier?

Yes. CVE-2026-11230 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34691.

When was CVE-2026-11230 published?

CVE-2026-11230 was published on 2026-06-04 and last updated on 2026-06-17.

CVE-2026-11230

CVE-2026-11230 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-34691
Weakness: CWE-416
Affected product: Google Chrome
Published: 2026-06-04
Last modified: 2026-06-17

Description

Use after free in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)

Frequently asked questions

What is CVE-2026-11230?: Use after free in Extensions in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)
How severe is CVE-2026-11230?: CVE-2026-11230 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-11230 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-11230?: CVE-2026-11230 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-11230?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-11230 have an EU (EUVD) identifier?: Yes. CVE-2026-11230 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-34691.
When was CVE-2026-11230 published?: CVE-2026-11230 was published on 2026-06-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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