https://blog.it-learn.io/tags/zimbra/Recent content in Zimbra on it-learn.io | IT, Networking & Cybersecurity BlogHugoen-usFri, 10 Jul 2026 00:00:00 +0000https://blog.it-learn.io/posts/2026-07-10-unpatched-http-3-dos-in-alibaba-xquic-260-byte-crash/Fri, 10 Jul 2026 00:00:00 +0000it-learn.iohttps://blog.it-learn.io/posts/2026-07-10-unpatched-http-3-dos-in-alibaba-xquic-260-byte-crash/Alibaba’s XQUIC HTTP/3 library has an unpatched denial-of-service flaw that lets any unauthenticated client crash a server with 260 bytes of valid QPACK traffic. Plus: Zimbra patches a critical pre-auth XSS, NSA revives the TAO brand, Microsoft dissects the GigaWiper destructive backdoor, and three WolfSSL CVEs from Talos.