High 8.8Published Oct 21, 2026

CVE-2026-114045FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format

Updated under an hour ago (2026-10-22 04:50 UTC)

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It affects FreeRDP. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.48%, higher than 41% of scored CVEs.

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Exploited in the last 30 days

FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FORMATS PDUs with an nBlockAlign too small for nChannels, causing an unbounded heap write during server audio playback, potentially enabling code execution.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.48% (percentile 41)
Assigned by: VulnCheck
NVD analysis: Received
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 21, 2026

Affected products

Affected products

FreeRDP FreeRDP freerdp:freerdp (from the name)	before 3.32.1; 3.32.1 not affected	CNA record

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-3m9q-g533-rqjqvendor-advisory
https://www.vulncheck.com/advisories/freerdp-before-3.32.1-heap-buffer-overflow-via-rdpsnd-server-select-formatthird-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.