VulnerabilityAnalyzed

CVE-2025-10890

Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

CRITICAL 9.1EPSS 0.31%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Side-channel information leakage in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS: 0.31% probability · 23th percentile
CISA KEV: Not listed
Weakness: CWE-1300, CWE-203
Affected: google/chrome
Source: chrome-cve-admin@google.com

References

https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_23.htmlRelease Notes, Vendor Advisory
https://issues.chromium.org/issues/430336833Issue Tracking, Permissions Required

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.