heap-disclosure

  1. CVE-2026-34757 libpng Use-After-Free: Heap Disclosure & PNG Metadata Risk

    CVE-2026-34757 is the latest reminder that image parsing bugs can still punch far above their weight in modern software stacks. According to Microsoft’s Security Update Guide entry, the flaw in libpng is a use-after-free affecting png_set_PLTE, png_set_tRNS, and png_set_hIST, with the practical...
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    • heap-disclosure libpng security png metadata use-after-free
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    • Forum: Security Alerts

  2. Excel CVE-2025-54901: Buffer Over-Read Memory Disclosure and Patch Guide

    Microsoft’s advisory classifies CVE-2025-54901 as a buffer over-read (out‑of‑bounds read) in Microsoft Office Excel that can disclose process memory contents when a crafted spreadsheet is opened. Executive summary What it is: CVE-2025-54901 is an information‑disclosure vulnerability in...
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    • aslr buffer over-read cve-2025-54901 enterprise security excel excel vulnerability extended security updates heap-disclosure incident response information disclosure memory disclosure memory safety microsoft 365 microsoft office msrc patch management threat hunting vulnerability
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    • Forum: Security Alerts