INTEL_REPORT
Ars Technica — Security · published 6/9/2026, 3:12:43 PM · TLP amber
Summary
Ingested excerpt (first ~500 chars of normalized text).
High-severity vulnerability in Linux caused by a single faulty character Use-after-free bug can be exploited to evade sandbox defenses. Researchers have analyzed a high-severity vulnerability in Linux that’s able to escalate untrusted users to root by exploiting a bug you don't often see: a single errant character inside the kernel. The vulnerability, tracked as CVE-2026-23111 , is located in nf_tables, a subsystem of the Linux kernel that provides packet filtering capabili…
https://arstechnica.com/security/2026/06/a-single-errant-character-in-the-linux-kernel-allows-attacker-to-gain-root
sha256:6e571991625e113a44654a5c6ee6f9390a43283c6a41538774feaf175a27b9fa
What we pulled out
Deterministic extractor (IOC + allowlisted tokens + ATT&CK IDs present in DB).
Indicators
Linked with report → mentions → indicator. Values open the indicator workspace.
| Type | Value | Link |
|---|---|---|
| cve | CVE-2026-23111 | Open → |
Malware families
Allowlist token matches only.
Threat actors mentioned
Allowlist mentions — not a formal attribution verdict.
ATT&CK techniques
MITRE IDs referenced in text and present in local technique table.
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