Full Report
Google on Wednesday shipped security updates for its Chrome browser to address three security flaws, including one it said has come under active exploitation in the wild. The vulnerability, rated high in severity, is being tracked under the Chromium issue tracker ID "466192044." Unlike other disclosures, Google has opted to keep information about the CVE identifier, the affected component, and
Analysis Summary
# Vulnerability: Undisclosed High-Severity Flaw in Google Chrome Under Active Attack
## CVE Details
- CVE ID: Not disclosed by vendor in the provided context.
- CVSS Score: High Severity (Specific numerical score not disclosed).
- CWE: Not disclosed.
## Affected Systems
- Products: Google Chrome browser. Other Chromium-based browsers (Microsoft Edge, Brave, Opera, Vivaldi) are also advised to apply fixes when available.
- Versions: Specific vulnerable version range is not detailed, but the fix is available in:
- Windows and Apple macOS: 143.0.7499.109/.110 and later.
- Linux: 143.0.7499.109 and later.
- Configurations: Not specified.
## Vulnerability Description
The core vulnerability being tracked under **Chromium issue ID 466192044** is a security flaw rated as high severity. Google is withholding specific details regarding the CVE identifier, the affected component, and the technical nature of the flaw as part of ongoing coordination efforts (likely to maximize patch uptake before comprehensive disclosure).
*Note: The article also mentions several other disclosed vulnerabilities patched alongside this one, including various use-after-free and implementation issues (e.g., CVE-2025-14372, CVE-2025-14373), but the primary focus is on the actively exploited, undisclosed flaw.*
## Exploitation
- Status: Exploited in the wild (Zero-day).
- Complexity: Assumed to be Medium to High, given Google's decision to withhold details for coordination.
- Attack Vector: Not explicitly stated, but typically browser vulnerabilities targeted in the wild involve memory corruption or sandbox escapes resulting from web content interaction.
## Impact
- Confidentiality: Assumed High (Typical for actively exploited zero-days).
- Integrity: Assumed High.
- Availability: Assumed Medium to High.
## Remediation
### Patches
Google has shipped security updates addressing this and other flaws. Specific fixed versions are:
- **Windows/macOS:** 143.0.7499.109 or 143.0.7499.110 (and newer).
- **Linux:** 143.0.7499.109 (and newer).
### Workarounds
No specific vendor-provided workarounds were detailed in the context provided, aside from immediate patching.
## Detection
- General detection focuses on ensuring the browser is updated to the patched versions.
- Specific Indicators of Compromise (IOCs) related to exploit payloads for issue 466192044 are not publicly available as vendor details are currently suppressed.
## References
- Chromium Issue Tracker ID: issues.chromium.org/issues/466192044
- Vendor Advisory (General Updates): chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop_10.html (Defanged: hxxps://chromereleases.googleblog.com/2025/12/stable-channel-update-for-desktop_10.html)