# Cisco Security Updates: Attackers can disrupt WAN environments

_Friday, August 7, 2026 at 8:00 AM EDT · Security · Latest · Tier 2 — Notable_

![Cisco Security Updates: Attackers can disrupt WAN environments — Primary](https://heise.cloudimg.io/bound/1200x1200/q85.png-lossy-85.webp-lossy-85.foil1/_www-heise-de_/imgs/18/5/1/3/9/4/9/8/cisco2-e705a5124833650c.png)

Cisco Security Updates: Attackers can disrupt WAN environments. Cisco said several critical vulnerabilities endanger Cisco network products and admins should promptly install the patched versions. Catalyst SD-WAN, Integrated Management Controller, IOS XE, RoomOS, Secure Firewall, and Terminal Services Agent are vulnerable. In the worst case, attackers can compromise entire networks or WAN infrastructures after successful attacks. Security updates are available for download. So far, the network equipment manufacturer has provided no indication of ongoing attacks.

## Sources

- [heise](https://www.heise.de/en/news/Cisco-Security-Updates-Attackers-can-disrupt-WAN-environments-11402971.html)

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Canonical: https://techandbusiness.org/newswire/bCZ_OiRhRWKPRg_u6_BCdM
Retrieved: 2026-08-07T15:15:44.088Z
Publisher: Tech & Business (techandbusiness.org)