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CVE details

CVE-2026-112277

rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_plane() in bitmap.c that allows malicious RDP servers to crash clients by sending malformed 32 bpp compressed bitmaps. Attackers can declare a large bitmap geometry with a short compressed body in bitmap update PDUs or bitmap cache orders, causing unbounded reads past the receive buffer and denial of service.

Score
7.1 high
Published
2026-10-19
Links
NVD · cve.org

Matched ports (1)

PortPackageVersionStatusMaintainer
net/rdesktoprdesktop1.9.0_1unaddressedfreebsd@gregv.net

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>rdesktop</name>
	<range><lt>FIXME</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>rdesktop through 1.9.0 contains a heap out-of-bounds read
	vulnerability in process_plane() in bitmap.c that allows malicious RDP
	servers to crash clients by sending malformed 32 bpp compressed
	bitmaps. Attackers can declare a large bitmap geometry with a short
	compressed body in bitmap update PDUs or bitmap cache orders, causing
	unbounded reads past the receive buffer and denial of service.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-112277</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-112277</url>
    </references>
    <dates>
      <discovery>2026-10-19</discovery>
      <entry>2026-10-26</entry>
    </dates>
  </vuln>