How severe is CVE-2026-7338?

CVE-2026-7338 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-7338 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-7338?

CVE-2026-7338 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-7338?

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-2026-7338 have an EU (EUVD) identifier?

Yes. CVE-2026-7338 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26164.

When was CVE-2026-7338 published?

CVE-2026-7338 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-7338

CVE-2026-7338 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 7.5. 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 7.5)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26164
Weakness: CWE-416
Affected product: Google Chrome
Published: 2026-04-28
Last modified: 2026-06-17

Description

Use after free in Cast in Google Chrome prior to 147.0.7727.138 allowed an attacker on the local network segment to potentially exploit heap corruption via malicious network traffic. (Chromium security severity: High)

Frequently asked questions

What is CVE-2026-7338?: Use after free in Cast in Google Chrome prior to 147.0.7727.138 allowed an attacker on the local network segment to potentially exploit heap corruption via malicious network traffic. (Chromium security severity: High)
How severe is CVE-2026-7338?: CVE-2026-7338 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-7338 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-7338?: CVE-2026-7338 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-7338?: 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-2026-7338 have an EU (EUVD) identifier?: Yes. CVE-2026-7338 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26164.
When was CVE-2026-7338 published?: CVE-2026-7338 was published on 2026-04-28 and last updated on 2026-06-17.

References

Affected products (1)

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

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