CVE-2026-103623 has an estimated ~0.3% chance of attack in 30 days (22.8th percentile) as of 2026-10-26 — probability signal, not confirmed exploitation Exploitation in the wild is not confirmed…
Google · Memory corruption
Use after free in Passwords in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page
What this means
This is rated high severity (8.8 out of 10). There is no confirmed exploitation of it yet. Ask IT whether Google Chrome is in your estate, and treat that as the priority.
Full vendor description
Use after free in Canvas in Google Chrome prior to 155.0.8059.79 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Scoring and exploitation
Exploitable over the network without any account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability
Longer bar: easier to attack
Impact
Longer bar: more harm
- ~0.3% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
Affected products ()
- Google Chrome
Show the raw CPE strings (1)
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
References
2 links from the CVE record, grouped by site; the vendor's advisory comes first.
chromereleases.googleblog.com1 linkVendor advisory
- stable-channel-update-for-desktop_01668083673.html (opens in a new tab)Release Notes · Vendor Advisory
issues.chromium.org1 link
- 570167920 (opens in a new tab)Permissions Required
Related feed events
- Type Vulnerability
- Type Vulnerability
Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability.

