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CVE-2026-15903

39
FAUCET Score

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)

First published: Jul 20, 2026Last modified: Jul 20, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 150.0.7871.128, < 150.0.7871.128CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 150.0.7871.128CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.31%
Probability of exploitation in next 30 days
EPSS Percentile
23.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0031 is in the 28th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 150.0.4078.83
googlevendor investigatingvia chrome_releases
View patch

Vendor Advisories (2)

googlegoogle:chrome-7df1ce629ccbc108CRITICAL

Stable Channel Update for Desktop

Jul 16, 2026
microsoft2026-Jul/CVE-2026-15903

Chromium: CVE-2026-15903 Out of bounds read and write in V8

Jul 14, 2026

References

chromereleases.googleblog.com / 2026/07/stable-channel-update-for-desktop_049796704.html
Release NotesVendor Advisory
issues.chromium.org / issues/531503216
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