CVE-2026-12019: Out of bounds write in Google Chrome
Heap buffer overflow in Codecs in Google Chrome on Linux and ChromeOS prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
AI Analysis
Technical Summary
This vulnerability involves a heap buffer overflow in the Codecs module of Google Chrome on Linux and ChromeOS platforms before version 149.0.7827.115. The flaw allows a remote attacker, with control over the renderer process, to potentially perform a sandbox escape by delivering a specially crafted HTML page. The sandbox escape could lead to further compromise beyond the renderer process. The vendor advisory link is provided but does not explicitly confirm patch availability or remediation status in the input data.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox, potentially leading to elevated privileges or broader system compromise on affected Linux and ChromeOS devices running vulnerable Chrome versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html for current remediation guidance. Until official fixes are confirmed and applied, avoid untrusted content that could trigger the vulnerability and consider limiting renderer process exposure.
CVE-2026-12019: Out of bounds write in Google Chrome
Description
Heap buffer overflow in Codecs in Google Chrome on Linux and ChromeOS prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
CVSS v3.1
Score 8.3high
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a heap buffer overflow in the Codecs module of Google Chrome on Linux and ChromeOS platforms before version 149.0.7827.115. The flaw allows a remote attacker, with control over the renderer process, to potentially perform a sandbox escape by delivering a specially crafted HTML page. The sandbox escape could lead to further compromise beyond the renderer process. The vendor advisory link is provided but does not explicitly confirm patch availability or remediation status in the input data.
Potential Impact
Successful exploitation could allow an attacker who has compromised the renderer process to escape the sandbox, potentially leading to elevated privileges or broader system compromise on affected Linux and ChromeOS devices running vulnerable Chrome versions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html for current remediation guidance. Until official fixes are confirmed and applied, avoid untrusted content that could trigger the vulnerability and consider limiting renderer process exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-11T18:16:05.515Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_01962725236.html","vendor":"Google"}]
Threat ID: 6a2b2912815e7002b834177b
Added to database: 6/11/2026, 9:30:58 PM
Last enriched: 6/11/2026, 9:46:26 PM
Last updated: 6/12/2026, 3:57:51 AM
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.