CVE-2026-121407 (GCVE-0-2026-121407)

Vulnerability from cvelistv5 – Published: 2026-11-03 14:28 – Updated: 2026-11-03 14:28
VLAI
Title
FreeRDP before 3.32.2 Shadow Server Denial of Service via remdesk Channel
Summary
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server's remdesk_server_thread that allows authenticated clients to crash the process via an inverted PDU length check. Attackers can send an 8192-byte remdesk payload declaring an eight-byte PDU length to trigger a fatal Stream_Seek assertion, aborting the server and dropping sessions.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-20 - Improper Input Validation
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 7402 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: 0 , < 3.32.2 (semver)
Unaffected: 3.32.2 (semver)
    cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-19 00:00
Credits
Kushalkhemka mayank-jangid-moon opensec-intelligence
Show details on NVD website
To clipboard 

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    "datePublished": "2026-11-03T14:28:08.104Z",
    "dateReserved": "2026-11-03T12:28:46.507Z",
    "dateUpdated": "2026-11-03T14:28:08.104Z",
    "state": "PUBLISHED"
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          }
        ],
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        "lastModified": "2026-11-03T15:59:17.710",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "cve": "CVE-2026-121407",
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      "title": "freerdp: freerdp: Denial of Service via malformed remdesk channel payload",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-121407.json",
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}



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