<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Write-Primitive — PoC Archive</title><link>https://poc.intelseclab.com/tags/write-primitive/</link><description>Latest proof-of-concept entries.</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Mon, 18 May 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://poc.intelseclab.com/tags/write-primitive/index.xml" rel="self" type="application/rss+xml"/><item><title>DirtyDecrypt / DirtyCBC — rxgk Page-Cache Write (Dirty Pipe Variant)</title><link>https://poc.intelseclab.com/pocs/binary/2026-05-18_dirtydecrypt/</link><pubDate>Mon, 18 May 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/binary/2026-05-18_dirtydecrypt/</guid><description>High severity — binary · N/A (reported as duplicate by kernel maintainers; patched on mainline). Status: Weaponized. Affects: Linux kernel — net/rxrpc (rxgk_decrypt_skb). Tags: LPE, Linux kernel, page-cache, rxgk, RxRPC, COW, write-primitive, unprivileged, Dirty-Pipe-variant, splice, MSG_SPLICE_PAGES.</description><category>binary</category><category>High</category><category>LPE</category><category>Linux kernel</category><category>page-cache</category><category>rxgk</category><category>RxRPC</category><category>COW</category><category>write-primitive</category><category>unprivileged</category><category>Dirty-Pipe-variant</category><category>splice</category><category>MSG_SPLICE_PAGES</category></item><item><title>Linux XFRM ESP-in-TCP Local Privilege Escalation (Fragnesia)</title><link>https://poc.intelseclab.com/pocs/binary/2026-05-14_linux-xfrm-fragnesia-lpe/</link><pubDate>Thu, 14 May 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/binary/2026-05-14_linux-xfrm-fragnesia-lpe/</guid><description>High severity (CVSS 7.8) — binary · CVE-2026-46300. Status: Weaponized. Affects: Linux kernel (XFRM ESP-in-TCP subsystem). Tags: LPE, privilege-escalation, kernel, XFRM, ESP-in-TCP, page-cache, write-primitive, unprivileged.</description><category>binary</category><category>High</category><category>LPE</category><category>privilege-escalation</category><category>kernel</category><category>XFRM</category><category>ESP-in-TCP</category><category>page-cache</category><category>write-primitive</category><category>unprivileged</category></item></channel></rss>