How severe is CVE-2026-11645?

CVE-2026-11645 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-2026-11645 being actively exploited?

Yes. CVE-2026-11645 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-06-09, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2026-11645?

CVE-2026-11645 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-11645?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2026-11645 have an EU (EUVD) identifier?

Yes. CVE-2026-11645 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35245. It is also flagged as exploited in the EUVD (since 2026-06-09).

When was CVE-2026-11645 published?

CVE-2026-11645 was published on 2026-06-09 and last updated on 2026-06-17.

CVE-2026-11645

CVE-2026-11645 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-06-09). The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2026-06-09)
EU (EUVD) id: EUVD-2026-35245
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-06-09)
Weakness: CWE-125
Affected product: Google Chrome
Published: 2026-06-09
Last modified: 2026-06-17

Description

Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Frequently asked questions

What is CVE-2026-11645?: Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
How severe is CVE-2026-11645?: CVE-2026-11645 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-2026-11645 being actively exploited?: Yes. CVE-2026-11645 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-06-09, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2026-11645?: CVE-2026-11645 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-11645?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2026-11645 have an EU (EUVD) identifier?: Yes. CVE-2026-11645 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35245. It is also flagged as exploited in the EUVD (since 2026-06-09).
When was CVE-2026-11645 published?: CVE-2026-11645 was published on 2026-06-09 and last updated on 2026-06-17.

References

Affected products (1)

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

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