CISA warns: critical citrix security gap at risk!
CISA warns: critical citrix security gap at risk!
In the cybersecurity world there is currently a topic that causes a lot of excitement: the CitrixBleed-2 gap. The American cybersecurity and infrastructure security authority CISA has now included this critical susceptibility to security in its catalog of the "Known Exploited Vulnerabilities" (KEV), which should leave anything but cold. According to a message from all-about-security.de, the weak point, which is also classified as CVE 2025-5777, is actively exploited and thus represents a considerable risk.
In particular, users of the products Citrix Netscaler ADC and Gateway are affected, which enable reading access outside the permissible area. CISA has recently asked operators to immediately take security measures. This is particularly urgent because these types of security gaps often serve as attack vectors, especially for federal authorities that are particularly worth protecting
urgency of the measures
It is particularly alarming that CISA has set a period of only one day for federal authorities to apply patches - a requirement that is considered unprecedented. According to Bleepingcomputer.com, the susceptibility to security was already included in the catalog on June 10, 2025, and since then security researchers have constantly warned of their severity. It is a critical memory susceptibility that enables unauthorized access to protected areas. Therefore, quick action is required!
The affected versions of Netscalers all rely on updating the latest builds in good time in order to ward off new attacks. The new firmware updates benefit versions 14.1-43.56+, 13.1-58.32+and 13.1 fips/ndcpp 13.1-37.235+. Users should also think about the separation of active sessions to avoid possible compromising.
The software adjustments and security systems
on June 17, 2025, Citrix published these updates, but to this day there has been some confusion about the status of exploitation, since an original security notification from Citrix of June 27, 2025, which no active exploitation in the wild, was not updated. Even after the warning of security researcher Kevin Beaumont about the seriousness of the situation on June 24th, the pressure on the companies concerned remained high, since threat players actively discussed the problems in hacker forums.
For companies that are looking for certainty with regard to their cybersecurity strategy, the Federal Office of Safety in Information Technology (BSI) offers valuable information and recommendations. The BSI website offers numerous information on improving cyber security for all types of companies. Here you will find information on prevention, reaction and detection that is essential for companies to secure yourself against current cyber risks.
In this fast-moving digitization, weaknesses such as the CitrixBleed-2 gap are constant companions. We recommend everyone who works with the systems concerned to comply with the security guidelines and act proactively, because as they say so nicely: where the smoke is, there is often also the fire!
all-about-security.de reports that the citrixbleed-2-gap is actively exploited, while bleepingcomputer.com underlines the urgency of fasting fixes. You can also get more information on safety-related topics from the DetailsOrt United States Quellen
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