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Linux Kernel ZcopyReaper Vulnerability Lets Local Attackers Gain Root Privileges

Linux kernel RDS zero-copy flaw CVE-2026-43502 (ZcopyReaper) lets unprivileged local users gain root; fix in 7.1-rc3, public PoC published.

CVE-2026-43502, dubbed ZcopyReaper, is a Linux kernel local privilege escalation flaw in the RDS zerocopy send path, present since kernel 4.17, allowing unprivileged local attackers to gain root. NebuSec researcher Yuan Tan demonstrated root escalation on openSUSE kernel 6.4.0-150600.23.100; the fix landed in commit 44b550d88b26 with Linux 7.1-rc3 the first patched mainline release. Exploitation requires CONFIG_RDS and CONFIG_RDS_TCP but not unprivileged user namespaces, and PoC exploit material is publicly released alongside more than 20 other exploitable 2026 kernel CVEs.

[webapps] Ray 2.56.0 - Directory Traversal & Local File Inclusion

Public exploit released for directory traversal and local file inclusion in Ray 2.56.0, the widely used distributed ML framework.

Exploit-DB entry 52635 publishes a web application exploit targeting Ray 2.56.0, the distributed computing framework from Anyscale commonly used for ML workloads. The PoC demonstrates a directory traversal and local file inclusion condition, allowing attackers to read files outside the intended path on an exposed Ray instance. Ray dashboard instances exposed to the internet could leak sensitive files such as credentials and configuration.

Exploit-DB · Aug 11, 2026Exploit / PoC

[local] Microsoft Edge 150.0.4078.48 - RCE

Exploit-DB publishes a local remote code execution exploit for Microsoft Edge 150.0.4078.48.

A public exploit demonstrates remote code execution in Microsoft Edge version 150.0.4078.48, listed under the local category on Exploit-DB. Successful exploitation could allow arbitrary code execution in the context of the browser. Users should update to the latest patched Edge release.

Exploit-DB · Aug 10, 2026Exploit / PoC