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New Fragnesia Linux Kernel LPE Grants Root Access via Page Cache Corruption

·Source: The Hacker News

Updated:

Executive Summary

Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia, the security vulnerability is tracked as CVE-2026-46300 (CVSS score: 7.8) and is rooted in the Linux kernel's XFRM

Analysis

Details have emerged about a new variant of the recent Dirty Frag Linux local privilege escalation (LPE) vulnerability that allows local attackers to gain root access, making it the third such bug to be identified in the kernel within a span of two weeks. Codenamed Fragnesia, the security vulnerability is tracked as CVE-2026-46300 (CVSS score: 7.8) and is rooted in the Linux kernel's XFRM

Indicators of Compromise (1)

CVE (1)
CVE-2026-46300
NVDMITRE CVE
Source Attribution

Originally published by The Hacker News on May 14, 2026.

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