CVE-2026-112279CWE-125

CVE-2026-112279

Medium · published October 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
22.6
In the wild
Unconfirmed
What it is

rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in process_bmpcache2() in orders.c that allows malicious RDP servers to crash clients via crafted revision-2 bitmap cache orders. Attackers can send an uncompressed order with large width/height or an underflowing mode nibble and short payload, causing memcpy() reads past the receive buffer and denial of service.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS
0.00310 · 22.6th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-10-19T18:17Z
References (6)
https://github.com/rdesktop/rdesktop/blob/v1.9.0/orders.c · [email protected]https://github.com/rdesktop/rdesktop/issues/436 · [email protected]https://github.com/rdesktop/rdesktop/pull/437 · [email protected]https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-read · [email protected]https://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-bmpcache2 · [email protected]https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-read · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 21 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 19 OCT 13:55Z
    rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_bmpcache2
    cvelistv5
  • 19 OCT 13:55Z
    rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_bmpcache2
    cvelistv5