| Description | Mitigation for Exchange Server vulnerability (critical zero day exploit) causes issues. These restrictions are temporary until a regular security update is released. - OWA Print Calendar functionality might not work. As a workaround copy the data or screenshot the calendar you want to print or use Outlook Desktop client. - Inline images might not display correctly in the recipients OWA reading pane. As a workaround, send images as email attachments or use Outlook Desktop client. - Published calendars might not work with error 500. - OWA light https://support.microsoft.com/en-us/office/learn-more-about-the-light-version-of-outlook-2aec8c2d-da48-4707-ba37-c800e1c284cd) does not work properly. ==> Users are unable to switch back to standard version of OWA. We will make the necessary changes for all affected users on the server side. |
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| Affected users | Users using https://owa.kit.edu |
| Exists since | 2026-05-14 19:00 |
| Description | For some time now, we have been observing, in isolated cases, increased latencies when accessing the file service via the CIFS / SMB protocol. The first report of disruptions related to data access over CIFS / SMB was received in August 2025. It is no longer possible to determine precisely when the issue initially started; however, recorded data suggests that the problem has existed since at least January 2025. In addition, issues occur with connections using the NFSv3 and NFSv4 protocols. These issues are not directly comparable to the SMB problems, as they occur randomly (for short periods of time) across all nodes and then resolve on their own. We will provide updates on relevant progress as well as any identified measures. We ask the affected users for their understanding and thank them for their patience. |
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| Affected users | SVC: KIT-Datenablage (persönliches Verzeichnis) SVC: KIT-Datenablage (OE-Verzeichnis) SVC: KIT-Datenablage (für Studierende) SB: bwSync&Share SVC: Print & Plot SVC: Print & Plot - Extras SVC: Web Site Management (WSM) SVC: ILIAS Lernplattform SVC: bwJupyter - der JupyterHub für die Lehre |
| Workaround | At this time, no workaround is available. Resolving the issue has the highest priority, and we are working intensively on a sustainable solution. |
| Exists since | 2025-01-01 00:00 |
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