CVE-2026-78935: Use of uninitialized variable in Google Chrome
Description
CVE-2026-78935 is a critical vulnerability in Google Chrome on iOS prior to version 152.0.7977.65. It involves the use of an uninitialized variable in the mobile version of Chrome, which could allow a remote attacker to execute arbitrary code outside the sandbox by crafting a malicious HTML page. The vulnerability has a high CVSS score of 9.6, indicating severe impact on confidentiality, integrity, and availability.
CVSS v3.1
Score 9.6critical
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is due to the use of an uninitialized variable in Google Chrome on iOS before version 152.0.7977.65. Exploitation could enable remote code execution outside the sandbox via a crafted HTML page. The issue is classified as critical by Chromium security with a CVSS 3.1 base score of 9.6 (AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H). No known exploits in the wild have been reported. The vendor has published an advisory linked to a stable channel update addressing this issue.
Potential Impact
Successful exploitation allows a remote attacker to execute arbitrary code outside the sandbox on affected Chrome versions on iOS. This compromises system confidentiality, integrity, and availability, potentially leading to full device compromise.
Mitigation Recommendations
A fix is available in Google Chrome version 152.0.7977.65. Users and administrators should update to this version or later to remediate the vulnerability. Refer to the official Google Chrome stable channel update advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html for details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:04:11.684Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9b8acd9273b49ac6da5
Added to database: 08/25/2026, 20:23:20 UTC
Last enriched: 09/10/2026, 00:52:14 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 45
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