Critical Analysis: CVE-2010-0249 - Microsoft Internet Explorer Use-After-Free Vulnerability... — May 28, 2026

Published 28 May 2026 · vulnerability management, CVE analysis, threat intelligence, security operations, cybersecurity news

Initial Discovery and Context Alright, let's talk about CVE-2010-0249. Even though it's been over a decade and a half since its original disclosure, this vulnerability remains a salient case study for understanding use-after-free (UAF) flaws, especially with the persistent, almost archaeological presence of legacy systems in critical infrastructure and certain enterprise environments. While Microsoft did patch this back in 2010, its resurgence in discussions as of May 28, 2026, often stems from two primary factors: the enduring lifecycle of the underlying IE components in various applications and embedded systems using Trident rendering engine, and its illustrative power for discussing modern UAF exploitation techniques in other contexts. This wasn't some theoretical flaw; it was actively exploited in the wild, notably as part of the Aurora attack campaign attributed to advanced persiste