If you use Google Chrome for work, school, or everyday browsing, this news affects you directly. Google has released an emergency update to fix a new zero‑day vulnerability that was already being exploited in real‑world attacks. And yes — it’s the seventh zero‑day so far this year.
At TecnetOne, we explain what this means, how serious it is, how it affects you, and what you should do right now to keep your data safe.
The flaw, identified as CVE-2025-13223, was reported by Clément Lecigne, a researcher from Google’s Threat Analysis Group (TAG). If you’re not familiar with TAG, you should know that it is one of Google’s elite teams focused on investigating highly advanced attacks — especially those linked to:
When TAG is involved, it usually means the vulnerability is being used for highly sophisticated and targeted operations.
In this case, the flaw is a type confusion issue in V8, Chrome’s JavaScript engine. It’s considered critical because it allows arbitrary code execution — meaning an attacker could potentially take control of your browser and, from there, compromise your entire device.
Worst of all: Google confirmed it was already being exploited before the patch was released.
Learn more: Data-stealing Chrome Extensions Impersonate Fortinet, YouTube, VPNs
Attacks that exploit flaws in the V8 engine are particularly severe for several reasons:
An attacker could use this vulnerability to install spyware, steal your accounts, or deploy malware.
You only need to visit a malicious website crafted to exploit the flaw.
TAG has seen similar vulnerabilities used against:
As with most zero‑days, attackers use them silently, without raising any visible alerts.
This is why Google keeps these incidents extremely confidential until users have had time to update.
Google released updates for:
Although the stable rollout is progressive, tests by security media (including BleepingComputer) confirmed the update is available immediately if you check manually.
Even though Chrome updates on its own, you should do it manually to be sure:
Done — you’re protected against this specific flaw.
As usual with actively exploited vulnerabilities, Google is limiting available information. They explain:
“Access to bug details will remain restricted until most users have updated.”
This prevents other malicious actors from replicating the exploit before the ecosystem is secured.
If the vulnerability also affects third‑party libraries, Google keeps details restricted until those vendors also release patches.
This is standard procedure for weaponized zero‑days.
This patch adds to a long list of critical vulnerabilities fixed recently.
In 2025 alone, Google has already patched six other actively exploited zero‑days, including:
And in 2024, Google fixed ten additional zero‑days, several showcased at hacking competitions like Pwn2Own.
Chrome is one of the most attractive targets worldwide due to its massive user base. If something can compromise Chrome, it can compromise billions of users within hours.
At TecnetOne, we emphasize one crucial point:
Updating Chrome is no longer optional — it’s fundamental digital hygiene.
A vulnerability like CVE‑2025‑13223 could be used to:
This affects individuals, enterprises, remote employees, BYOD devices, and organizations relying on cloud services.
Similar titles: Chrome Zero-Day CVE-2025-6554 Actively Exploited: Update Now Chrome Zero-Day CVE-2025-6554 Actively Exploited: Update Now
Here are TecnetOne’s practical recommendations:
Update Chrome on all devices
Including personal laptops used for remote work.
Remove suspicious extensions
Many attacks combine browser exploits with malicious extensions.
Review everything at: chrome://extensions
Deploy advanced endpoint protection
Behavior‑based EDR detects exploitation attempts — even zero‑days.
Keep your operating system updated
A patched browser on an outdated OS is still vulnerable.
For companies: enforce automatic updates
Chrome supports forced patching via group policies.
Train your teams
Many high‑level attacks combine technical exploits with social engineering.
Google has patched a critical vulnerability (CVE‑2025‑13223) that was already being used in real‑world attacks. It’s the seventh Chrome zero‑day in 2025, a clear reminder that browsers are one of the primary modern attack surfaces.
Immediate solution: update Chrome now.
Long‑term solution: strengthen your cybersecurity strategy — and at TecnetOne, we can help you assess risks, reinforce your systems, and train your team.