Google issued an emergency fix for a Chrome vulnerability already under exploitation, which marks the world's most popular browser's eighth zero-day bug of 2025.

We have even fewer than usual details about this security flaw, and the missing details as of early Thursday include a CVE (still listed as "under coordination"), what type of vulnerability Google fixed in Chrome, and who spotted and reported the security hole.

As of now, the high-severity bug is tracked as 466192044, and all the Chocolate Factory [1]said in its security update is: "Google is aware that an exploit for 466192044 exists in the wild."

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Google generally withholds bug details until the majority of its users have updated their browsers, but it does typically provide a CVE and the type of weakness that it fixed.

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Mac and Windows users should update to 143.0.7499.109/.110 to address the issue, and 143.0.7499.109 is the update for Linux systems.

In addition to plugging 466192044, the latest Chrome update also includes a fix for a medium-severity use-after-free flaw in Password Manager, tracked as CVE-2025-14372 and reported by Weipeng Jiang.

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Plus, another medium-severity security hole, CVE-2025-14373, that's due to inappropriate implementation in Toolbar, now has a fix. Khalil Zhani reported this one.

[6]Google Chrome bug exploited as an 0-day - patch now or risk full system compromise

[7]Two Android 0-day bugs disclosed and fixed, plus 105 more to patch

[8]Microsoft reports 7.8-rated zero day, plus 56 more in December Patch Tuesday

[9]Microsoft quietly shuts down Windows shortcut flaw after years of espionage abuse

Chrome's latest zero-day comes less than a month after Google disclosed and patched its seventh such security issue: [10]CVE-2025-13223 , a type confusion flaw in the V8 JavaScript engine that could potentially lead to full system compromise.

This emergency fix also follows [11]two Android bugs that were exploited as zero-days before being fixed in Android's December update. ®

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[1] https://chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop_10.html

[2] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_security/patches&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=2&c=2aTtNBFep7AKPD7pP5ge37wAAAAo&t=ct%3Dns%26unitnum%3D2%26raptor%3Dcondor%26pos%3Dtop%26test%3D0

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[4] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_security/patches&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=3&c=33aTtNBFep7AKPD7pP5ge37wAAAAo&t=ct%3Dns%26unitnum%3D3%26raptor%3Deagle%26pos%3Dmid%26test%3D0

[5] https://pubads.g.doubleclick.net/gampad/jump?co=1&iu=/6978/reg_security/patches&sz=300x50%7C300x100%7C300x250%7C300x251%7C300x252%7C300x600%7C300x601&tile=4&c=44aTtNBFep7AKPD7pP5ge37wAAAAo&t=ct%3Dns%26unitnum%3D4%26raptor%3Dfalcon%26pos%3Dmid%26test%3D0

[6] https://www.theregister.com/2025/11/18/google_chrome_seventh_0_day/

[7] https://www.theregister.com/2025/12/02/android_0_days/

[8] https://www.theregister.com/2025/12/09/december_2025_patch_tuesday/

[9] https://www.theregister.com/2025/12/04/microsoft_lnk_bug_fix/

[10] https://www.theregister.com/2025/11/18/google_chrome_seventh_0_day/

[11] https://www.theregister.com/2025/12/02/android_0_days/

[12] https://whitepapers.theregister.com/