SARA / Free Tools / CVE / CVE-2023-40186

CVE-2023-40186 — FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an IntegerOverflow leading to Out-Of-Bound Write Vulnerability in the `gdi_CreateSurface` function. This issue affects FreeRDP based clients

CVSS
6.5 MEDIUM
EPSS
10.00% (top 71.90%)
CWE
CWE-787, CWE-190
Published
2023-08-31T21:13:57.792Z
Last modified
2025-11-03T20:35:51.128Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

01What is this vulnerability?

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an IntegerOverflow leading to Out-Of-Bound Write Vulnerability in the `gdi_CreateSurface` function. This issue affects FreeRDP based clients only. FreeRDP proxies are not affected as image decoding is not done by a proxy. This issue has been addressed in…

02Affected products

VendorProductVersions
FreeRDPFreeRDP< 2.11.0, >= 3.0.0-beta1, < 3.0.0-beta3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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