‼️ CISA has added 6 vulnerabilities to the KEV Catalog CVE-2026-21513: Microsoft Internet Explorer Protection Mechanism Failure Vulnerability: Microsoft Internet Explorer contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network. CVE-2026-21525: Microsoft Windows NULL Pointer Dereference Vulnerability: Microsoft Windows Remote Access Connection Manager contains a NULL pointer dereference that could allow an unauthorized attacker to deny service locally. CVE-2026-21510: Microsoft Windows Shell Protection Mechanism Failure Vulnerability: Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network. CVE-2026-21533: Microsoft Windows Improper Privilege Management Vulnerability: Microsoft Windows Remote Desktop Services contains an improper privilege management vulnerability that could allow an authorized attacker to elevate privileges locally. CVE-2026-21519: Microsoft Windows Type Confusion Vulnerability: Microsoft Desktop Windows Manager contains a type confusion vulnerability that could allow an authorized attacker to elevate privileges locally. CVE-2026-21514: Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability: Microsoft Office Word contains a reliance on untrusted inputs in a security decision vulnerability that could allow an authorized attacker to elevate privileges locally.
Post summary
CISA announced six Microsoft CVEs added to the KEV catalog, detailing each vulnerability’s type and potential impact on privilege escalation or service denial.
