CVE-2026-109946 (GCVE-0-2026-109946)

Vulnerability from cvelistv5 – Published: 2026-10-13 13:27 – Updated: 2026-10-13 13:27
VLAI
Title
FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width
Summary
FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client after RDPGFX AVC444 negotiation by sending an in-bounds region rectangle with an odd width.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 5953 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: 3.11.0 , < 3.32.0 (semver)
Unaffected: 3.32.0 (semver)
    cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-29 00:00
Credits
Kushalkhemka mayank-jangid-moon skigeek16 opensec-intelligence
Show details on NVD website
To clipboard 

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    "datePublished": "2026-10-13T13:27:13.792Z",
    "dateReserved": "2026-10-13T11:24:25.841Z",
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        "cveTags": [],
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          }
        ],
        "id": "CVE-2026-109946",
        "lastModified": "2026-10-13T14:17:32.820",
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                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
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                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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                "modifiedSubIntegrityImpact": "NOT_DEFINED",
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                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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