FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because...
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP |
< 3.32.2 |
3.32.2 |
Fix status by distribution
Fixed packages published by each distribution for this CVE Fixed versions differ by release; check each link.
- Debian DEBIAN-CVE-2026-121952 freerdp2
- Ubuntu UBUNTU-CVE-2026-121952 freerdp
Original description The description as published by the source.
FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because rdp_read_bitmap_cache_v2_capability_set rejects only numCellCaches values above 5, yet the bitmap cache v2 cell array is later accessed at fixed indices 0 through 4. A client connecting to the proxy can declare fewer than five cell caches in its Confirm Active, causing heap corruption, heap data leakage to the backend, or a crash.
Source: CVE.org (CVE Program・cvelistV5) NVD GitHub Advisory
References
- advisory disclosure@vulncheck.com
- exploit github.com
- web nvd.nist.gov
- web github.com