Cisco Dropped 18 CVEs Yesterday — Here's What Actually Needs Your Attention
Seven critical CVEs across two product lines. None exploited yet. No workarounds exist. Here's the fast triage. NX-OS NGOAM — 3 × CVSS 9.8 Unauthent…
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Cisco ISE CVE-2026-76460: When the Policy Engine Becomes the Weakest Link
Cisco ISE CVE-2026-76460: When the Policy Engine Becomes the Weakest Link On September 16, 2026, Cisco published a batch of security advisories cove…
Cisco FMC CVE-2026-20079: a CVSS 10.0 management-plane bypass and the clusters behind it
Cisco FMC CVE-2026-20079: a CVSS 10.0 management-plane bypass and the clusters behind it Opening A patch that shipped in March became an incident in…
CVE-2026-76442 and the Cost of an Unbounded Number in Cisco Secure Email Gateway
CVE-2026-76442 and the Cost of an Unbounded Number in Cisco Secure Email Gateway Vulnerability overview On 14 September 2026 Cisco released fixes fo…
CVE-2026-76441: Improper Access Control in Cisco Secure Email Gateway Exposes Restricted Functions
CVE-2026-76441: Improper Access Control in Cisco Secure Email Gateway Exposes Restricted Functions Cisco Secure Email Gateway (formerly Email Securi…
Как городской телефон определяет номер? Запускаем Caller ID в домашних условиях
Приветствую всех! Если у вас дома есть городской телефон и он показывает, с какого номера вам звонят, то, скорее всего, это определение работает чер…
One Console, Every Firewall: Cisco FMC CVE-2026-20079 and Concentrated Management Risk
One Console, Every Firewall: Cisco FMC CVE-2026-20079 and Concentrated Management Risk Cisco Secure Firewall Management Center is the console admini…
Cisco Secure Firewall Management Center sftunnel Flaw (CVE-2026-20324) Explained
Cisco Secure Firewall Management Center sftunnel Flaw (CVE-2026-20324) Explained Overview CVE-2026-20324 is a critical vulnerability in the sftunnel…
CVE-2026-76443: Injection Flaws in Cisco Secure Email Gateway Management Interfaces
CVE-2026-76443: Injection Flaws in Cisco Secure Email Gateway Management Interfaces Vulnerability overview CVE-2026-76443 is one of five flaws fixed…
Cisco's two exploited flaws and CISA's patch clock
The main case On Monday, September 14, a researcher publishes the details of CVE-2026-76461 ( Source: SOCRadar ), a remote code execution with root…
Hunting the Cisco ISE Authentication Bypass: Detection and Response for CVE-2026-76423
Hunting the Cisco ISE Authentication Bypass: Detection and Response for CVE-2026-76423 Vulnerability overview CVE-2026-76423 is an authentication by…
The Management Plane Is the Attack Surface: What Cisco FMC's Exploited Zero-Day Teaches About Exposed Admin Interfaces
The Management Plane Is the Attack Surface: What Cisco FMC's Exploited Zero-Day Teaches About Exposed Admin Interfaces Why this matters to you Most…
ARP – невидимая основа сетей Ethernet/IPv4. Разбираем на примере Ubuntu, Cisco и Eltex
Address Resolution Protocol или ARP появился еще в 1982 году, но до сих пор остается важной частью IPv4-сетей на базе Ethernet. Представьте школьную…
TACACS+, RADIUS и 802.1X под одной политикой: как я строил Taranac и что из этого вышло
Привет, Хабр. Десять лет назад я был обычным сетевым инженером, которому надоело править tac_plus.conf руками, и я написал вокруг него в…
Cisco Patches CVSS 10.0 Flaw in Secure Workload — Unauthenticated Attackers Could Gain Site Admin via API
Cisco has released emergency patches for a maximum-severity vulnerability in its Secure Workload platform — a flaw so severe it earned the rarest de…
EEM 101: On-Box Automation That Runs Even When Your NMS Doesn't
This is Part 1 of a 5-part series on Cisco EEM. We start here with the fundamentals and a few working applets, then build toward self-healing networ…
Used Cisco Catalyst switches: 2960X vs 3750X vs 3850
If you're building a lab or scaling a small office network, Cisco Catalyst switches dominate the second-hand enterprise market. They're robust, well…
When automation meets simplicity over Python or Ansible
We constantly hear that Ansible and Python are apparently the only ways to automate networks, today I even listen in a conversation "Python is the i…
Как я написал технотриллер для сисадминов: «Заговорённые», реальный код и число π
Я сисадмин. Олдскульный. Работал с сетями, писал скрипты, поднимал VPNы, отлаживал маршрутизацию в три часа ночи. И люблю читать фантастик…
Daily Learning Pt.3
Part 3 of my daily learning blog. Today I started learning at 17:00 and finished at 21:00 with very short breaks. First, I completed the rest of the…