Threat Intelligence / CVE / CVE-2026-15903

CVE-2026-15903 — Google Chrome

EPSS 0.2% (higher than 20.7% of all scored CVEs) · Priority 0.8/10 · Published 2026-07-20

As of 2026-07-20, CVE-2026-15903 is a vulnerability in Google Chrome, EPSS 0.2% (20.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-15903, most recently “Multiple Vulnerabilities in Google Chrome Enable Remote Code Execution and Information Disclosure (CVE-2026-15899 through CVE-2026-15905)”.

Last updated: 2026-07-20

What is CVE-2026-15903?

Out of bounds read and write in V8 in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 54 days ago.

Severity and exploitation probability

EPSS (FIRST)
0.2% probability of exploitation in the next 30 days, higher than 20.7% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
0.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-07-20

Is CVE-2026-15903 being exploited?

It currently carries a trending score of 35 in the Threadlinqs vulnerability feed.

Affected products and versions

How to fix CVE-2026-15903

No vendor patch reference has been recorded for CVE-2026-15903 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

Threat activity tracking CVE-2026-15903

1 tracked threat in the Threadlinqs corpus references CVE-2026-15903, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Other references

Full detection coverage & IOCs for threats exploiting CVE-2026-15903 are available via the Threadlinqs MCP server (Purple tier). View plans →

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