Incorrect access control mechanisms in Citrix Receiver Desktop Lock 4.5 allow an attacker to bypass the authentication requirement by leveraging physical access to a VDI for temporary disconnection of a LAN cable
Published Nov 7, 2016
6.8
MEDIUMCVSS 3.0
EPSS 1.78%
Description
Incorrect access control mechanisms in Citrix Receiver Desktop Lock 4.5 allow an attacker to bypass the authentication requirement by leveraging physical access to a VDI for temporary disconnection of a LAN cable. NOTE: as of 20161208, the vendor could not reproduce the issue, stating "the researcher was unable to provide us with information that would allow us to confirm the behaviour and, despite extensive investigation on test deployments of supported products, we were unable to reproduce the behaviour as he described. The researcher has also, despite additional requests for information, ceased to respond to us."
Affected products
No data.
- 4.5
No data.
No Red Hat product state for this CVE.
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:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.78% (0.01783) | 77.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.78% (0.01783) | 75.34th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.49% (0.03490) | 86.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.99% (0.05985) | 84.04th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.49% (0.03490) | 86.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.30% (0.00305) | 70.57th | v3 (v2023.03.01) |
| May 22, 2024 | 0.35% (0.00352) | 71.87th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.42% (0.00419) | 73.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00419) | 70.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.47% (0.07474) | 92.67th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.47% (0.07474) | 91.96th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.47% (0.07474) | 80.89th | v2 (v2022.01.01) |
References (5)
- http://www.securityfocus.com/bid/94229 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037176 vdb-entryx_refsource_SECTRACK
- https://packetstormsecurity.com/files/139493/Citrix-Receiver-Receiver-Desktop-Lock-4.5-Authentication-Bypass.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://vuldb.com/?id.93250 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://www.exploit-db.com/exploits/40686/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/94229 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037176 | vdb-entryx_refsource_SECTRACK | |
| https://packetstormsecurity.com/files/139493/Citrix-Receiver-Receiver-Desktop-Lock-4.5-Authentication-Bypass.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://vuldb.com/?id.93250 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://www.exploit-db.com/exploits/40686/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.