Tag Archives: Citrix

Critical vulnerabilities in Citrix NetScaler ADC & NetScaler Gateway

Posted on 2025-08-27 by guenni

[German]Administrators of Citrix NetScaler ADC and NetScaler Gateway must respond as new critical vulnerabilities (CVE-2025-7775, CVE-2025-7776, CVE-2025-8424) have been discovered. Citrix writes that exploitation of a vulnerability via exploits has already been observed. Advertising

Posted in Security, Software | Tagged , | Leave a comment
Advertising

Citrix Vulnerability CVE-2025-5777: Is Citrix Bleed Part 2 back?

Posted on 2025-06-25 by guenni

[German]Are you responsable for Citrix NetScaler ADC and the NetScaler Gateway as an administrator? Last week I had reported on serious vulnerabilities on Citrix products mentioned above that should be closed promptly by patching. Now Citrix has changed the description … Continue reading →

Posted in devices, Security, Software, Update | Tagged , , | Leave a comment

Citrix Netscaler ADC: Critical vulnerabilities, update urgently

Posted on 2025-06-18 by guenni

[German]Various German blog readers have informed me that the provider Citrix has published several security advisories on critical vulnerabilities in the Netscaler ADC (and Gateway, and Secure Access Client for Window) as of June 17, 2025. Administrators are requested to … Continue reading →

Posted in Security, Software, Update | Tagged , , | Leave a comment

Citrix Lizenz Server 11.17.2 Build 51000 with Time Bomb

Posted on 2025-03-03 by guenni

[German]There seems to be an unpleasant surprise for Citrix Service Providers in the License Manager. There are suddenly no more licenses available for some providers. The cause is probably a "time bomb" in Citrix License Server 11.17.2 Build 51000, in … Continue reading →

Posted in issue, Software | Tagged , | Leave a comment

Attention: Problems with Windows January 2025 updates and Citrix environments (session recordings)

Posted on 2025-01-17 by guenni

[German]Take care when installing the Windows updates from January 2025 in Citrix environments. Administrators must ensure that the Session Recordings (SR), if installed, are switched off before the update installation. There is a support article from Citrix with some advices … Continue reading →

Posted in issue, Update, Windows | Tagged , , , , | Leave a comment

Why ISL Online: Critical factors when choosing a remote desktop solution

[Sponsored Post]In the rapidly evolving IT world, choosing the right remote desktop software is critical for organizations that value security, ease of use and reliability. One provider of secure remote access that has been on the market since 2001 is ISL Online, which presents some considerations for choosing such software below. More ...

Massive price hike in license costs: Is Citrix now also copying the "Broadcom business approach"?

Posted on 2024-04-08 by guenni

[German]German blog reader has told me that there are substantial price hikes for license renewals of Citrix Virtual Desktop solutions or other Citrix products. The question is "does Citrix copies the Broadcom business approach". Advertising

Posted in Software, Virtualization | Tagged , , | Leave a comment

NetScaler ADC and NetScaler Gateway vulnerabilities CVE-2023-6548 and CVE-2023-6549

Posted on 2024-01-16 by guenni

[German]Administrators of a Citrix NetScaler ADC or a Citrix NetScaler Gateway should take action. Manufacturer Citrix has published a security advisory regarding the two vulnerabilities CVE-2023-6548 and CVE-2023-6549 in the above-mentioned products on January 16, 2024. One vulnerability allows DDoS … Continue reading →

Posted in Security, Software | Tagged , | Leave a comment

FYI: Citrix ShareFile worldwide down (24, Aug. 2023)

Posted on 2023-08-24 by guenni

Brief information for administrators who are responsible for Citrix ShareFile. David M. just emailed me about a worldwide outage (thanks for that). He noted that this afternoon (8/24/2023) the connection to Citrix Sharefile became slower and slower. Then the connection … Continue reading →

Posted in Cloud, issue | Tagged , , | Leave a comment
Advertising

Citrix: FSLogix causes logon and logoff errors

Posted on 2023-08-21 by guenni

[German]Are there sudden login problems or errors when logging out of a session under Citrix VDI? If FSLogix is used and it uses cloud cache locations for profiles or ODFC containers along with App Layering Elastic Layers, this may be … Continue reading →

Posted in issue, Virtualization, Windows | Tagged , , | Leave a comment

CISA warns: Citrix NetScaler ADC is under attack via CVE-2023-3519

Posted on 2023-07-21 by guenni

[German]The U.S. cybersecurity agency CISA is warning administrators of Citrix NetScaler ADC installations. Threat actors have begun exploiting the NetScaler ADC vulnerability CVE-2023-3519, disclosed a few days ago, to implant webshells. Administrators should look for signs of compromise. Kompromittierung suchen. … Continue reading →

Posted in Security, Update | Tagged , | Leave a comment