CVE-2026-112279
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
ProductRdesktop
PublishedOct 19, 2026
First seenOct 19, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| rdesktop rdesktop | v ≤ 1.9.0 | — |
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