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CISA flags Cisco BroadWorks flaw as actively exploited in attacks

Summary by BleepingComputer
The US Cybersecurity and Infrastructure Security Agency (CISA) warned on Tuesday that hackers are now exploiting a high-severity Cisco BroadWorks vulnerability in attacks. [...]

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According to Malbear Labs, a player with AI support attacked a European telecommunications provider about the BroadWorks gap. Patches have been around for weeks.

CISA warned about the active exploitation of vulnerability CVE-2026-2020 in Cisco BroadWorks, a XXE failure that allows unauthorized reading of confidential files. The case gained even more severity after a Malbear Labs report pointing out the use of autonomous artificial intelligence in attacks against telecommunications providers. Administrators should update the affected components and investigate possible exposures of credentials and private…

CISA warned about targeted attacks on Cisco, Barracuda, Google, Openwave, and Microsoft products. Faults range from file exposure and control evasion to command execution, while several already have updates available. *** A failure in Cisco BroadWorks allows unauthenticated attackers to obtain sensitive files using manipulated XML messages. Barracuda corrected two vulnerabilities, one critical and one high, which could allow them to evade contro…

Currently, attacks are underway on Cisco BroadWorks, Barracuda ESG, other Barracuda network devices and other products.

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BleepingComputer broke the news in Melville, United States on Wednesday, November 11, 2026.
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