Critical Alert 1 Active Exploit Detected Today

CVE-2026-7273 — Zyxel GS1900 Series Switches Stack-Based Buffer Overflow Vulnerability →
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September 22, 2026

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CVE-2026-90202NVD

Vulnerability Summary

In the Linux kernel, the following vulnerability has been resolved:

scsi: mpt3sas: Avoid freeing unallocated PCIe SGL buffers

_base_release_memory_pools() unconditionally frees every
ioc->pcie_sg_lookup[] entry, including ones the setup loop never
allocated after a partial failure, causing a "bad dma" warning on debug
kernels or a NULL pointer dereference otherwise.
Severity Level
UNKNOWN
Published Date
Sep 17, 2026
Last Modified
Sep 17, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.21%Probability
Root Weakness (CWE)
N/A

Affected & Patched Versions

Affected Versions
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < 3361709fb6f6568b157c6f24ed21a4a5d86d73db
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < 240b582b6372bebb1245d911add9954b7dd6c02d
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < a61181f9ee30a98d2350c1bff32954a7521f9a23
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < afedf35df054bd713e9e13771aa0a056932c5c67
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < bc3398db3b64729b4a7907af317daad04795ad40
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < 2dbdd025b228110ccbfbab95fe16e098313a14af
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < e2cd23443d3616ea0876f27762b17e2ec67d896c
  • Linux Linux >= dbec4c9040edc15442c3ebdb65408aa9d3b82c24 and < b9f679dfe629004b593f018df33b330d799bcee4
  • Linux Linux >= 4.16
Patched Versions
  • Linux Linux 3361709fb6f6568b157c6f24ed21a4a5d86d73db
  • Linux Linux 240b582b6372bebb1245d911add9954b7dd6c02d
  • Linux Linux a61181f9ee30a98d2350c1bff32954a7521f9a23
  • Linux Linux afedf35df054bd713e9e13771aa0a056932c5c67
  • Linux Linux bc3398db3b64729b4a7907af317daad04795ad40
  • Linux Linux 2dbdd025b228110ccbfbab95fe16e098313a14af
  • Linux Linux e2cd23443d3616ea0876f27762b17e2ec67d896c
  • Linux Linux b9f679dfe629004b593f018df33b330d799bcee4
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♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
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💬Webhooks — Slack & Teams integration.
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External References