A vulnerability (CVE-2026-33825, CVSS 7.8 HIGH) in Microsoft System Center involves insufficient access control granularity in Windows Defender, allowing a local authenticated attacker to elevate privileges. Microsoft has released updates to remediate this issue, and administrators are advised to install the available patches. Further details and installation guidance can be found on the Microsoft Security Response Center portal.
Beveiligingsadviezen Download Beveilingsadvies; NCSC-2026-0115 [1.0.0] Beveiligingsadvies NCSC-2026-0115 [1.0.0] Publicatie 14-04-2026 21:19 (Europe/Amsterdam) Prioriteit Normaal Betreft Kwetsbaarheid verholpen in Microsoft System Center Kenmerken Insufficient Granularity of Access Control Omschrijving Microsoft heeft een kwetsbaarheid verholpen in System Center. Een kwaadwillende kan de kwetsbaarheid misbruiken doordat Windows Defender onvoldoende gedetailleerde toegangscontrole toepast, waardoor een geautoriseerde aanvaller lokaal zijn rechten kan verhogen. Oplossingen Microsoft heeft updates beschikbaar gesteld waarmee de beschreven kwetsbaarheden worden verholpen. We raden u aan om deze updates te installeren. Meer informatie over de kwetsbaarheden, de installatie van de updates en eventuele work-arounds vindt u op: https://portal.msrc.microsoft.com/en-us/security-guidance CVE's CVE-2026-33825 - CVSS (v3) 7.8 Producten Microsoft Microsoft Defender Antimalware Platform Disclaimer The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.