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      "text" : "An update for xorg-x11-server is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
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      "text" : "X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.\n\nSecurity Fix(es):\n\n* xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow (CVE-2026-55999)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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      "title" : "Vulnerability description"
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      "category" : "summary",
      "text" : "xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow",
      "title" : "Vulnerability summary"
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      "category" : "other",
      "text" : "This Important flaw in xorg-x11-server allows an authenticated X client to achieve arbitrary code execution. By processing a malicious PCF font file where glyph metrics exceed declared bounds, a heap buffer overflow occurs within the glamor acceleration backend. This vulnerability primarily impacts Red Hat systems running Xorg with the modesetting driver or Xwayland, typically found in desktop environments.",
      "title" : "Statement"
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      "category" : "general",
      "text" : "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
      "title" : "CVSS score applicability"
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    } ],
    "threats" : [ {
      "category" : "impact",
      "details" : "Important"
    } ],
    "title" : "xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow"
  } ]
}