Enterprise IT keeps moving fast, and this past week was no exception. Below, we round up the most important developments in networking, servers, and semiconductors from the past ten days. We pulled the highlights from Network World, The Register, Data Center Knowledge, CIO Dive, and Tom’s Hardware, so you do not have to dig through five different feeds yourself.
Enterprise Networking & Switches
Cisco Patches a Maximum-Severity Flaw in Identity Services Engine
Cisco patched a maximum-severity, actively exploited flaw in its Identity Services Engine (ISE) this week. The bug, tracked as CVE-2026-76460, let attackers bypass the web management interface and gain root access. Cisco fixed it in ISE and ISE-PIC versions 3.1 Patch 12, 3.2 Patch 11, 3.3 Patch 12, 3.4 Patch 7, and 3.5 Patch 4. The same release closed 21 other critical and high-severity ISE bugs, plus separate issues in Secure Firewall ASA, Secure Firewall Threat Defense, and Secure Firewall Management Center. If your network runs any of this gear, patching should move to the top of the list.
MikroTik Closes an Exploit Chain Hitting 122,000+ Routers
MikroTik router owners also got an urgent update. Researchers found an exploit chain, nicknamed “MikroTrick,” that combines two RouterOS bugs to grant unauthenticated root access over SSH. Over 122,500 MikroTik devices currently expose SSH to the internet, so the risk is real, not theoretical. The fix landed in RouterOS 7.25 beta 3, 7.24.2, 7.23.4, and 6.49.21.
Cisco Bundles Seven Fixes Into One IOS XR Patch
Cisco also bundled fixes for seven vulnerabilities in IOS XR, its carrier-grade router operating system. Two score a critical 9.8 and could allow remote code execution with full root access, and no workaround exists yet. Every IOS XR release is affected, including IOS XR7. Fixes are rolling out now, with fully patched releases (IOS XR 26.2.2 and 26.3.1) on the way.
Servers & Data Center Infrastructure
Fujitsu Brings Its Custom Arm Server Chip to Market Early
Fujitsu is bringing its custom Arm server chip to market ahead of schedule. The Monaka processor packs 144 cores built on Armv9, using Broadcom’s 3D chip-stacking to combine four 2nm compute dies with four 5nm SRAM chiplets. Fujitsu will sell Monaka-based servers directly, in 1U and 2U form factors, starting in November 2026, and is open to selling the chip to other server makers too. The pitch: a sovereign, made-in-Japan option for inference-heavy workloads.
Bull Beats HPE for the Next-Gen Lumi Supercomputer
French vendor Bull beat out HPE for a €387.8 million contract to build the next generation of the Lumi supercomputer in Finland. The new “Lumi-AI” partition replaces today’s AMD Instinct MI250X GPUs with AMD’s upcoming Instinct MI430X (“Altair”) accelerators, paired with 256-core AMD Epyc 9006 (“Venice”) CPUs. The target is ten times today’s AI performance, a useful reminder of how fast the server refresh cycle keeps moving.
Why Data Center GPUs Get Replaced Long Before They Wear Out
Not every GPU needs to be new to be useful. A good piece from Data Center Knowledge this week looked at how long data center GPUs actually last: most stay physically usable for five-plus years, but get swapped out every two to four years simply because newer chips (like Nvidia’s Blackwell generation) outperform older ones (like Hopper) by such a wide margin. That gap is exactly what feeds a healthy resale market, where used GPUs and servers still recover 10 to 20 percent of their original cost. Good news if refurbished or pre-owned hardware is part of your sourcing strategy.
Components & Semiconductors
Marvell Scales Up Optics for 1.6T and 3.2T Networking
Marvell is scaling up its optical interconnect supply chain. It expanded a partnership with GlobalFoundries to boost silicon-germanium wafer production, supporting the co-packaged and near-packaged optics used in next-generation AI networking gear. The technology is already validated for 1.6 Tbps transceivers, with 3.2 Tbps on the roadmap, and it is the same class of optics Nvidia uses in its Spectrum Ethernet and Quantum InfiniBand switches.
Asus Clears an FCC Hurdle as the Wi-Fi 8 Race Heats Up
On the networking-components side, Tom’s Hardware flagged a regulatory twist in the Wi-Fi 8 race. The FCC granted Asus conditional approval to keep selling its wireless lineup in the US through March 2028, clearing the way for its upcoming Wi-Fi 8 hardware. TP-Link, by contrast, remains locked out over supply-chain security concerns, even as it races to launch its own first Wi-Fi 8 routers. Worth watching if Wi-Fi 8 access points end up on your shortlist next year.
The Takeaway
Three themes stood out this week. Network admins have real patching to do. Server chip variety keeps expanding beyond the usual names. And the secondary market for enterprise hardware only becomes more relevant as refresh cycles shorten. If any of this week’s gear, from Cisco switches to server-grade Arm and x86 chips, is on your radar, check our Weekly Deals page for current stock, or get in touch and we will help you track it down.
Sources
- Network World: Cisco patches max-severity ISE flaw
- Network World: MikroTik patches flaws being exploited to take over routers
- Network World: Cisco bundles fixes into one IOS XR patch
- The Register: Fujitsu ready to sell its custom Monaka Arm chip
- The Next Platform / The Register: Bull beats HPE for next-gen Lumi AI supercomputer
- Data Center Knowledge: GPU lifespan in data centers, physical vs economic
- The Register: Marvell pushes GlobalFoundries to light up wafer production
- Tom’s Hardware: Asus routers gain FCC’s conditional approval