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CVE-2026-112277

CVE-2026-112277 · rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_plane

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.1 · High · EPSS 0.4%

Published
Updated

Stack: system

Affected products and versions

  • rdesktop

    Versions
    • ≥ 0, ≤ 1.9.0: Affected (custom)

    No fix published

  • rdesktop Debian:12

    Versions
    • 1.9.0-2
    • 1.9.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Debian:13

    Versions
    • 1.9.0-2
    • 1.9.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Debian:14

    Versions
    • 1.9.0-2
    • 1.9.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:16.04:LTS

    Versions
    • 1.8.3-1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:18.04:LTS

    Versions
    • 1.8.3-2
    • 1.8.3-2build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:20.04:LTS

    Versions
    • 1.8.6-2build1
    • 1.9.0-1
    • 1.9.0-2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:22.04:LTS

    Versions
    • 1.9.0-2build1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:24.04:LTS

    Versions
    • 1.9.0-2build1
    • 1.9.0-2build3
    • 1.9.0-2build4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:26.10

    Versions
    • 1.9.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • rdesktop Ubuntu:26.04:LTS

    Versions
    • 1.9.0-2build4
    • 1.9.0-2build5
    • 1.9.0-3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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