rdesktop: Denial of Service in mcs_recv_connect_response and mcs_parse_domain_params
Published Mar 15, 2019
7.5
HIGHCVSS 3.0
EPSS 4.30%
Description
rdesktop versions up to and including v1.8.3 contains several Integer Signedness errors that lead to Out-Of-Bounds Reads in the file mcs.c and result in a Denial of Service (segfault).
Affected products
No data.
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 5
rdesktop
Will not fix
Red Hat Enterprise Linux 6
rdesktop
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | rdesktop | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | rdesktop | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.30% (0.04304) | 90.84th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.30% (0.04304) | 89.84th | v5 (v2026.06.15) |
| Nov 21, 2025 | 0.58% (0.00585) | 68.21th | v4 (v2025.03.14) |
| Nov 18, 2025 | 2.83% (0.02831) | 84.91th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.12% (0.01124) | 76.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00331) | 71.97th | v3 (v2023.03.01) |
| Mar 8, 2024 | 0.78% (0.00781) | 80.94th | v3 (v2023.03.01) |
| Aug 11, 2023 | 0.93% (0.00929) | 80.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.98% (0.00976) | 81.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.06% (0.02061) | 50.21th | v1 |
| Jan 6, 2022 | 2.06% (0.02061) | 49.70th | v1 |
| Sep 1, 2021 | 2.06% (0.02061) | 76.87th | v1 |
| Apr 14, 2021 | 2.06% (0.02061) | 0.00th | v1 |
References (11)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/106938 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-20175 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1670400 Issue Tracking
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-20175
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/ x_refsource_CONFIRMExploitThird Party Advisory
- https://security.gentoo.org/glsa/201903-06 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-20175
- https://www.debian.org/security/2019/dsa-4394 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.