On the point: An account with hardcoded credentials in Cisco firewall management software is being actively exploited; a Cisco update is available.
In the management software of Cisco firewalls, an account with fixed login credentials (CVE-2026-20316) exists that has already been discovered and exploited by attackers. Cisco has released an update, but the vulnerability enables unauthorized administrative access.
An authentication vulnerability has been identified in the management software of Cisco firewalls: a hardcoded user account with fixed access credentials allows attackers to obtain administrative privileges. The vulnerability has been registered as CVE-2026-20316.
For CISOs, this presents a critical risk, as an attacker with administrative login credentials can modify firewall configuration, monitor traffic, or implement rules to circumvent security measures. The account cannot be disabled as long as firewall management runs through this standard access.
Cisco has provided an update that closes the vulnerability. Organizations should immediately review the management interfaces of their Cisco firewalls, identify the affected software version, and apply the patch. Additionally, network segmentation is recommended to permit management access only from controlled sources.
Source: borncity.com · Published 30 July 2026
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