CVE-2026-112277: high-severity vulnerability in rdesktop
rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_plane
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.4%
exploitation probability
0.4%top 67% of all CVEs
observed exploitation
nono source reports it
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
rdesktop · rdesktopRelated CVEs — rdesktop
In the same product, most dangerous first.
References
https://github.com/rdesktop/rdesktop/blob/v1.9.0/bitmap.chttps://github.com/rdesktop/rdesktop/issues/436https://github.com/rdesktop/rdesktop/pull/437https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-readhttps://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-plane