EUVD-2026-33102
GHSA-7w34-gvpm-fpjm
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Integer overflow in PDFium in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to execute arbitrary code inside a sandbox via a crafted font file. (Chromium security severity: High)
AnalysisAI
Sandboxed arbitrary code execution in Google Chrome's PDFium component (versions prior to 148.0.7778.216) is possible via an integer overflow triggered by a crafted font file. The flaw requires a pre-compromised renderer process and user interaction, and no public exploit identified at time of analysis, though Chromium rates it High severity.
Technical ContextAI
PDFium is the open-source PDF rendering engine integrated into Chromium-based browsers, responsible for parsing PDF documents and embedded font streams. The root cause is CWE-472 (External Control of Assumed-Immutable Web Parameter), manifesting here as an integer overflow during font file processing - arithmetic on attacker-controlled size or offset values wraps around, leading to undersized allocations or out-of-bounds memory access that the attacker can leverage for code execution. The CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* indicates all Chrome desktop builds below the fixed version are affected; downstream Chromium-based browsers (Edge, Brave, Opera, Vivaldi) typically inherit this bug until they roll up the patch.
RemediationAI
Vendor-released patch: Google Chrome 148.0.7778.216 - upgrade all desktop Chrome installations to this version or later via the stable channel update referenced at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html, and verify enterprise auto-update policies are not blocking the rollout. For Chromium-based browsers, apply the equivalent vendor update once available. As a compensating control where patching is delayed, disable the built-in PDF viewer via the AlwaysOpenPdfExternally enterprise policy so PDFium does not render untrusted PDFs in-process (trade-off: PDFs open in an external handler, breaking inline workflows), and consider site-isolation enforcement and strict download/file-handling policies; note these only reduce, not eliminate, exposure since this bug is reached only after a renderer is already compromised.
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
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Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Vendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
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External POC / Exploit Code
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