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CVE-2026-78952 is a high-severity out-of-bounds write vulnerability in Crashpad, the crash-handling component of Google Chrome, affecting Windows versions before 152.0.7977.65. A remote attacker who has already compromised the renderer process can exploit the flaw through a crafted HTML page to execute arbitrary code outside Chrome's sandbox. Crashpad runs outside the sandbox, making the vulnerability useful as the final stage of a browser exploit chain. A demonstrated chain combined V8 and animated-WebP decoder vulnerabilities with this flaw to achieve code execution outside the browser when a user loaded a malicious page.
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A high-severity vulnerability in Chrome's Crashpad crash handler, fixed in Chrome 152.0.7977.65 on August 25. As the final stage of XBOW's demonstrated exploit chain, it converted a precise memory write obtained through preceding vulnerabilities into code execution outside Chrome's sandbox on Windows. XBOW says the bugs were never used against Chrome users. The article recommends restarting Chrome and confirming version 152.0.7977.82 or later to apply all identified fixes.
A high-severity out-of-bounds write vulnerability in Chrome's Crashpad component on Windows. An attacker who has already compromised the renderer process can use a crafted HTML page to execute arbitrary code outside the sandbox. The reference reports a CVSS v3 base score of 8.3 and recommends updating the Chromium package to 152.0.7977.64-1 or later.
A vulnerability published on 2026-08-25 affecting the listed Debian Linux versions and Debian Chromium package context. The provided CVSS v3 vector indicates network reachability, low attack complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
A high-severity out-of-bounds write in Crashpad in Google Chrome for Windows before version 152.0.7977.65. An attacker who has already compromised the renderer process can use a crafted HTML page to execute arbitrary code outside Chrome's sandbox.
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Cross-references every affected SKU, including bundled OEM variants.
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