How severe is CVE-2026-5915?

CVE-2026-5915 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2026-5915 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5915?

CVE-2026-5915 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5915?

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-2026-5915 have an EU (EUVD) identifier?

Yes. CVE-2026-5915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20750.

When was CVE-2026-5915 published?

CVE-2026-5915 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-5915

CVE-2026-5915 is a high-severity vulnerability in Google Chrome with a CVSS 3.x base score of 8.1. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20750
Weakness: CWE-20
Affected product: Google Chrome
Published: 2026-04-08
Last modified: 2026-06-17

Description

Insufficient validation of untrusted input in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Low)

Frequently asked questions

What is CVE-2026-5915?: Insufficient validation of untrusted input in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Low)
How severe is CVE-2026-5915?: CVE-2026-5915 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2026-5915 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5915?: CVE-2026-5915 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5915?: 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-2026-5915 have an EU (EUVD) identifier?: Yes. CVE-2026-5915 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20750.
When was CVE-2026-5915 published?: CVE-2026-5915 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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