CVE-2026-112277rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_plane
Updated under an hour ago ()
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It affects rdesktop. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
rdesktop rdesktop rdesktop:rdesktop (from the name) | through 1.9.0 | CNA record |
References
- https://hackmd.io/@haindpwn/rdesktop-bitmap-decompress-oob-readthird-party-advisory
- https://github.com/rdesktop/rdesktop/issues/436issue-tracking
- https://github.com/rdesktop/rdesktop/pull/437patch, issue-tracking
- https://github.com/rdesktop/rdesktop/blob/v1.9.0/bitmap.ctechnical-description
- https://www.vulncheck.com/advisories/rdesktop-through-1.9.0-heap-out-of-bounds-read-via-process-planethird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.