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Linux Zoom Client Proactively Reads X11 Clipboard

Simon Tatham reports that Zoom's Linux client proactively reads the X11 clipboard, potentially exposing copied passwords and other sensitive data.

A Mastodon post by Simon Tatham, shared via Lobsters, reports that the Linux Zoom client proactively reads the X11 system clipboard rather than accessing it only on explicit paste. Because X11 allows any running application to query clipboard contents, secrets such as copied passwords or tokens may be captured by the app. The observation highlights the broader privacy gap between X11's unrestricted clipboard access and more restricted display servers like Wayland.

Lobsters · security · 3d agoResearch1

Zoom Patches “Zoomsday” Zero-Click Flaw Enabling Remote Code Execution

Zoom patched CVE-2026-53413, a zero-click annotation flaw dubbed "Zoomsday" allowing remote code execution on meeting participants' devices across all platforms.

Zoom patched four vulnerabilities, including CVE-2026-53413, a stack buffer overflow in CAnnoFormatBlock::Deserialize in the annotation protocol that allows zero-click remote code execution on another participant's device. A Security also found CVE-2026-53414, a buffer overread enabling denial-of-service crashes, and CVE-2026-53415, a use-after-free Zoom had already discovered internally. Updates shipped for Workplace 7.1.5 and 7.0.6, Rooms 7.1.5, and Meeting SDK 7.1.5 across all supported platforms.

Sandworm-Linked UAC-0145 Uses Fake Job Interviews to Push VPN That Can Run Commands

CERT-UA says Sandworm-linked UAC-0145 poses as recruiters in fake job interviews to deliver a trojanized WireGuard VPN that runs attacker commands on victims' hosts.

CERT-UA attributes the campaign, ongoing since May 2026, to UAC-0145, a subgroup within GRU-affiliated Sandworm (APT44). Posing as HR staff of firms like ATLAS Business Group and Sopra Steria Bulgaria, attackers lure Ukrainian IT specialists into Zoom interviews, then share failing WireGuard configs and push a custom SopraVPN client from SourceForge. The modified WireGuard build supports a non-standard SymmetricKey option holding AES-256-GCM-encrypted PowerShell, decrypted with the decoded PrivateKey and executed via runScriptCommand. A scheduled task then downloads a second-stage payload on Windows, while the Linux variant fetches it via cURL.

The Hacker News · Aug 12, 2026Threat actor1