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#Cisco

29 stories taggedCisco.

Illustration: a dimly lit enterprise network operations centre, rows of server racks with amber indicator lights
Vulnerabilities

Cisco SD-WAN flaw gives attackers admin keys, and someone is already using it

CISA gave federal agencies three days to patch CVE-2026-76504 after evidence the authentication bypass is being exploited in the wild.

3 min read
Network infrastructure diagram displayed on a large monitor with nodes highlighted in red, representing affected telecommunications routing systems with severit
Vulnerabilities

Cisco Patches Eight Flaws in Network Software Used by Telecoms Worldwide, Two Rated Near-Maximum Severity

Cisco's own engineers found the vulnerabilities using artificial intelligence tools. No fixes exist beyond the patches, and two of the flaws score 9.8 out of 10 on the standard severity scale.

4 min read
A Windows update installation screen showing a progress bar at completion, with security patch notification badges and version numbers visible in the background
Vulnerabilities

Nearly 1,000 Windows Fixes in One Month: Two Zero-Days Already Being Exploited

Microsoft's September 2026 Patch Tuesday lands 964 security fixes, two of them already in active use by criminals, plus roughly 20 bugs that could spread automatically across networks.

4 min read
A cybersecurity operations center with Cisco Secure Firewall Management Center interface displayed on a large screen, a perfect 10
Vulnerabilities

Cisco firewall manager flaw rated 10 out of 10 is under active attack

A perfect-score bug in Cisco's Secure Firewall Management Center lets attackers take full control without a password. Evidence suggests exploitation started weeks before Cisco confirmed it.

4 min read
An email security appliance device with its status lights glowing, a terminal window open in front showing command execution with root permissions, and network
Vulnerabilities

Hackers Are Actively Exploiting a Critical Flaw in Cisco's Email Security Appliance

A zero-day vulnerability in Cisco Secure Email Gateway lets an unauthenticated attacker run any command they like as the most powerful user on the system. No login required.

3 min read
Illustration: A dimly lit enterprise server room at night
Vulnerabilities

Cisco's Network Gatekeeper Has a Perfect-10 Flaw and Hackers Are Already Inside

A zero-day in Cisco Identity Services Engine lets anyone on the internet walk past the login screen entirely. Federal agencies have three days to patch. There is no workaround.

3 min read
A Cisco Nexus switch rack glowing with network activity indicators, critical warning messages displayed on adjacent monitoring station screens showing code exec
Vulnerabilities

Cisco patches critical Nexus 9000 bug that lets attackers run code as root

A flaw tracked as CVE-2026-20212 scores 9.8 out of 10. Cisco also shipped a bundled fix for seven separate IOS XR bugs, two of them equally severe, with no workaround available.

4 min read
A genealogical tree diagram made of interconnected glowing nodes and branching pathways, representing the lineage and dependencies of AI model origins traced ac
AI Security

Banning One AI Brand Isn't Enough: Your Model's Family Tree Still Matters

Cisco researchers say that where an AI model is built tells you far less than where it came from. Tracing a model's lineage reveals hidden dependencies and inherited behaviours that a country-of-origin label simply cannot.

3 min read
A network operations center with multiple large displays showing Cisco infrastructure components and security dashboards with critical alert notifications highl
Vulnerabilities

Cisco Patches Four Maximum-Severity Flaws in Crosswork Network Software

Fifteen vulnerabilities fixed across Cisco products, with three scoring a perfect 10 out of 10 on the standard severity scale. None are known to be exploited yet.

3 min read
A firewall interface frozen mid-crash with error messages, surrounded by incoming attack vectors represented as red network pathways converging on the device
Vulnerabilities

Cisco firewalls are being crashed through a VPN flaw, and the fix is a full software upgrade

A high-severity bug in Cisco's Secure Firewall ASA and FTD software lets attackers reboot devices remotely with a single crafted web request. Cisco says the attacks started in August.

4 min read
Illustration: A Windows workstation screen in harsh office fluorescent
Vulnerabilities

Cisco Warns Windows Users of High-Severity ClamAV Flaws, Two With Working Attack Code Released

Seven vulnerabilities in the ClamAV antivirus engine affect Cisco's Secure Endpoint Connector software across Windows, macOS, and Linux. Patches land in August.

3 min read
A network operations center displaying SD-WAN infrastructure diagrams with twelve vulnerability indicators highlighted across the topology, three of them marked
Vulnerabilities

Cisco Patches a Dozen Flaws in SD-WAN and IOS XE, Three Rated Critical

An internal Cisco security review turned up 12 vulnerabilities, including three with a severity score of 9.8 out of 10, in software that runs corporate networks worldwide.

3 min read
A Cisco firewall management console displayed on a security operations center monitor, showing the vulnerability notification and severity rating of 10
Vulnerabilities

Cisco Patches 24 Flaws, Including a Perfect-Score Bug That Hands Attackers Full Control

A flaw in Cisco's firewall management software scores a rare 10 out of 10 on the severity scale, meaning a remote attacker needs no password to take complete control of an affected system.

3 min read
A network firewall device with a padlock partially obscured by shadow, illustrating a hidden credential vulnerability waiting to be discovered
Vulnerabilities

Cisco firewall manager had a hidden password. Attackers found it first.

A built-in account in Cisco Secure Firewall Management Center was exploited as a zero-day in July, and Cisco is telling customers to patch and hunt for a specific log entry.

3 min read
A software development workspace showing an AI analysis tool highlighting suspicious code sections within a vast codebase, with human security engineers reviewi
AI Security

Cisco's Antares AI Helps Code Reviewers Find Vulnerabilities Faster

Cisco's Antares models narrow a vast codebase down to a ranked shortlist of suspect files, giving security teams a faster path into triage without replacing the humans who do it.

3 min read
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