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CVE-2026-46300

linux · linux kernel

Published
CVSS7.8
Severityhigh
WeaknessCWE-787
ExploitedNot in CISA KEV

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skb_has_shared_frag() before deciding whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skb_has_shared_frag() as false and decrypt in place over page

References

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CVE-2026-46300high

Metasploit Wrap Up: Lot of summer shells and fit http profiles

Metasploit Framework has released version 6.5, introducing thirteen new modules with a focus on remote code execution (RCE) and local privilege escalation (LPE) vulnerabilities across various platforms and applications. The update also enhances HTTP malleable profiles, adds Linux multi-fetch payloads, and introduces support for Windows on ARM with new AArch64 reverse-TCP shells. Several modules target specific vulnerabilities, including those in WordPress, Joomla, SonicWall, and the Linux kernel.