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Citrix is recommending its customers upgrade their appliances to mitigate potential exploitation of the vulnerabilities.
There is some disagreement over whether the remote code execution (RCE) security flaws allow for unauthenticated exploitation or not. Citrix says no, but researchers say the company is downplaying a "good old unauthenticated RCE."
Patch or isolate now: Organizations in every sector run the risk of hemorrhaging data as opportunistic attacks from LockBit ransomware and others grow.
In the race over Citrix's latest vulnerability, the bad guys have a huge head start, with broad implications for businesses and critical infrastructure providers worldwide.
The latest threat to Citrix NetScaler, CVE-2023-4966, was exploited as a zero-day bug for months before a patch was issued. Researchers expect exploitation efforts to surge.