Medium severity6.5NVD Advisory· Published Sep 15, 2026

CVE-2026-91945

Description

FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKID_CORE_DEVICE_IOCOMPLETION responses to trigger reads past stack or heap objects, causing process termination.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Freerdp/Freerdpllm-fuzzy
Range: <3.31.0

Patches

Vulnerability mechanics

References

github.com/FreeRDP/FreeRDP/commit/9626564421df72c84f891afdbc0b20bf702f369fnvd
github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q65v-4w7q-hx3rnvd
www.vulncheck.com/advisories/freerdp-before-3.31.0-out-of-bounds-read-via-smartcard-atrnvd

News mentions

No linked articles in our index yet.

cvss	0.423
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000