Cybersecurity articles tagged #Microsoft SharePoint on RuntimeRebel.https://runtimerebel.comhttps://runtimerebel.com/blog/sharepoint-rce-via-cve-2026-55040-cve-2026-63520-patch-nowhttps://runtimerebel.com/blog/sharepoint-rce-via-cve-2026-55040-cve-2026-63520-patch-nowAn AI-assisted exploit chain, leveraging CVE-2026-55040 and CVE-2026-63520, enables unauthenticated RCE on Microsoft SharePoint Server. Immediate patching is critical.Mon, 17 Aug 2026 00:39:44 GMTMicrosoft SharePointRemote Code ExecutionVulnerability ChainingAI in CybersecurityCVE-2026-55040https://runtimerebel.com/blog/cve-2026-55040-critical-sharepoint-auth-bypass-exploited-after-pochttps://runtimerebel.com/blog/cve-2026-55040-critical-sharepoint-auth-bypass-exploited-after-pocAttackers exploit CVE-2026-55040, a critical authentication bypass in Microsoft SharePoint, leading to data disclosure and modification.Thu, 13 Aug 2026 09:02:53 GMTMicrosoft SharePointAuthentication BypassZero Day ExploitationProof of ConceptCVE-2026-55040https://runtimerebel.com/blog/swiss-government-sharepoint-breach-200-accounts-compromisedhttps://runtimerebel.com/blog/swiss-government-sharepoint-breach-200-accounts-compromisedSwitzerland's federal IT office confirms a Microsoft SharePoint breach compromised approximately 200 accounts, leading to a swift remediation.Mon, 10 Aug 2026 00:59:49 GMTSharePointData BreachSwiss GovernmentAccount CompromiseMicrosoft SharePointhttps://runtimerebel.com/blog/cve-2026-50522-sharepoint-rce-via-deserialization-patch-nowhttps://runtimerebel.com/blog/cve-2026-50522-sharepoint-rce-via-deserialization-patch-nowCISA confirmed active exploitation of CVE-2026-50522 in Microsoft SharePoint. Attackers leverage a deserialization vulnerability to execute code remotely. Patch…Sun, 02 Aug 2026 16:49:14 GMTCVE-2026-50522Microsoft SharePointDeserializationRemote Code ExecutionCISA KEVhttps://runtimerebel.com/blog/cve-2023-29357-cisa-warns-of-active-sharepoint-exploit-chainhttps://runtimerebel.com/blog/cve-2023-29357-cisa-warns-of-active-sharepoint-exploit-chainCISA urges immediate patching of CVE-2023-29357 and CVE-2023-24955 in SharePoint Server due to active exploitation for remote code execution.Wed, 15 Jul 2026 10:05:47 GMTCVE-2023-29357CVE-2023-24955Microsoft SharePointCISA KEVhttps://runtimerebel.com/blog/cve-2026-45659-sharepoint-rce-exploitation-mitigation-guidehttps://runtimerebel.com/blog/cve-2026-45659-sharepoint-rce-exploitation-mitigation-guideCISA adds CVE-2026-45659, a high-severity SharePoint Server deserialization flaw, to KEV catalog after confirmed active exploitation by threat actors.Thu, 02 Jul 2026 07:34:50 GMTCVE-2026-45659Microsoft SharePointDeserializationCISA KEVRemote Code Executionhttps://runtimerebel.com/blog/cve-2024-38094-1300-sharepoint-servers-at-risk-of-rcehttps://runtimerebel.com/blog/cve-2024-38094-1300-sharepoint-servers-at-risk-of-rceOver 1,300 Microsoft SharePoint servers remain unpatched against CVE-2024-38094, a critical RCE vulnerability actively exploited by threat actors.Wed, 22 Apr 2026 08:43:27 GMTCVE-2024-38094Microsoft SharePointRCECISA KEVShadowserverhttps://runtimerebel.com/blog/cisa-kev-catalog-update-microsoft-office-rce-and-sharepoint-exploitedhttps://runtimerebel.com/blog/cisa-kev-catalog-update-microsoft-office-rce-and-sharepoint-exploitedCISA adds CVE-2009-0238 (Microsoft Office RCE) and CVE-2026-32201 (SharePoint Server input validation) to its Known Exploited Vulnerabilities Catalog.Tue, 14 Apr 2026 20:27:09 GMTCVE-2009-0238CVE-2026-32201Microsoft OfficeMicrosoft SharePointRCECISA KEVVulnerability Managementhttps://runtimerebel.com/blog/cve-2026-20963-microsoft-sharepoint-deserialization-exploit-patch-nowhttps://runtimerebel.com/blog/cve-2026-20963-microsoft-sharepoint-deserialization-exploit-patch-nowCISA adds CVE-2026-20963, a Microsoft SharePoint deserialization vulnerability, to its KEV catalog due to active exploitation.Wed, 18 Mar 2026 20:17:46 GMTCVE-2026-20963Microsoft SharePointDeserialization VulnerabilityKEV CatalogActive Exploitation