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01 Record

CVE-2023-40186

IntegerOverflow leading to Out-Of-Bound Write Vulnerability in FreeRDP

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
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02 Description

IntegerOverflow leading to Out-Of-Bound Write Vulnerability in FreeRDP

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
1.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 71.2% of scored records. A rank, not a probability.
NVD base score
9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-31 21:13Z3 YR AGO
Last updated
2025-11-03 20:35Z11 MO AGO
Reserved
2023-08-09
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weaknesses
  • CWE-190Integer Overflow or WraparoundBase
  • CWE-787Out-of-bounds WriteBase
Data version
5.2
Document digest
0594a57148604d84e9deefe5e4cb2f8d5d1d9273ec7c0711b6b055075cc43cfb

05 Affected products

VendorProductVersionsPlatforms
FreeRDPFreeRDP< 2.11.0, >= 3.0.0-beta1, < 3.0.0-beta3—

06 References

07 Fixed in

AlmaLinux 9

  • freerdp
    Fixed in 2:2.11.2-1.el9
  • freerdp-devel
    Fixed in 2:2.11.2-1.el9
  • freerdp-libs
    Fixed in 2:2.11.2-1.el9
  • libwinpr
    Fixed in 2:2.11.2-1.el9
  • libwinpr-devel
    Fixed in 2:2.11.2-1.el9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • freerdp
    Fixed in 2:2.11.2-1.el9
  • freerdp-devel
    Fixed in 2:2.11.2-1.el9
  • freerdp-libs
    Fixed in 2:2.11.2-1.el9
  • libwinpr
    Fixed in 2:2.11.2-1.el9
  • libwinpr-devel
    Fixed in 2:2.11.2-1.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • freerdp2
    Fixed in 2.11.7+dfsg1-6~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • freerdp2
    Fixed in 2.2.0+dfsg1-0ubuntu0.20.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • freerdp2
    Fixed in 2.6.1+dfsg1-3ubuntu2.4

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • freerdp2
    Fixed in 2.2.0+dfsg1-0ubuntu0.18.04.4+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.