CVE-2025-10500 — Use-After-Free in Dawn (Graphics Abstraction Layer)

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What we know

Why this matters

  • Dawn/WebGPU is part of modern browser / GPU stack exposing graphics capabilities. Vulnerabilities there can be leveraged via malicious sites or crafted content.

  • Use-after-free implies memory region being used after its freed — can enable remote attackers (via malicious web content) to corrupt memory, possibly lead to code execution.

  • If exploited successfully, could lead to sandbox escape or privilege escalation within Chrome or any host that uses Dawn.

Affected Software / Versions

Detection & Hunting Tips

Here are signs to monitor:

  • Crash logs / renderer process instability relating to Dawn/WebGPU (look for stack traces referencing Dawn or WebGPU abstractions).

  • Browser error/sandbox escape attempts following rendering tasks (e.g., after WebGPU shaders or GPU-accelerated content).

  • Unusual GPU driver or graphics component logs.

  • Monitor for unusual memory allocation/free patterns or UAF indicators in Chrome or GPU logs.

Sample query pseudo-logic:

index=chrome_crash_logs
| where crash_reason contains "use after free" OR module contains "dawn" AND crash_stack contains WebGPU
| stats count by host, version, stack_trace

Mitigation & Fixes

Immediate actions

  • Update Chrome immediately to the patched version. Google released updates in stable channel that incorporate the fix for this CVE. Daily CyberSecurity+1

  • If you have browsers or environments with WebGPU disabled or Dawn not in use, consider disabling or restricting WebGPU until patch is confirmed.

Medium term / best practices

  • Harden sandbox and isolate GPU processes. Ensure graphics processes run with least privilege.

  • Enable site isolation and enforce safe content policies for untrusted sites.

  • Monitor for new versions of browser builds and ensure patch management is in place.

Risk & Exploitability

  • Exploit complexity: requires crafting web content or malware to trigger use-after-free in Dawn. Not trivial, but realistic especially when combined with other bugs.

  • User interaction: likely requires visiting a malicious website or opening malicious content; may not be full drive-by unless picked carefully.

Recommendations

  • Ensure all browsers in your organization are updated to the version that patches CVE-2025-10500.

  • For any WebGPU-heavy web apps or sandboxed GPU content, test under patched and unpatched conditions to see behavior.

  • Audit clients / endpoints for GPU driver versions; ensure compatibility with updated Chrome graphics stack.

  • Train incident responders to collect GPU crash dumps and browser renderer logs (forensics) in case of suspected exploit.


#CyberDudeBivash #CVE2025-10500 #ChromePatch #WebGPU #Dawn #MemorySafety #UseAfterFree #ThreatIntel #BrowserSecurity

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