A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition
Published Feb 1, 2017
9.8
CRITICALCVSS 3.0
EPSS 6.84%
Description
A vulnerability in a proprietary device driver in the kernel of Cisco TelePresence Multipoint Control Unit (MCU) Software could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition. The vulnerability is due to improper size validation when reassembling fragmented IPv4 or IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv4 or IPv6 fragments to a port receiving content in Passthrough content mode. An exploit could allow the attacker to overflow a buffer. If successful, the attacker could execute arbitrary code or cause a DoS condition on the affected system. Cisco TelePresence MCU platforms TelePresence MCU 5300 Series, TelePresence MCU MSE 8510 and TelePresence MCU 4500 are affected when running software version 4.3(1.68) or later configured for Passthrough content mode. Cisco has released software updates that address this vulnerability. Workarounds that address this vulnerability are not available, but mitigations are available. Cisco Bug IDs: CSCuu67675.
Affected products
No data.
- 4.3_\(1.68\)
- 4.3_\(2.18\)
- 4.3_\(2.30\)
- 4.3_\(2.32\)
- 4.4_\(3.42\)
- 4.4_\(3.49\)
- 4.4_\(3.54\)
- 4.4_\(3.57\)
- 4.4_\(3.67\)
- 4.5_\(1.45\)
- 4.5_\(1.55\)
- 4.5_\(1.71\)
- 4.5_\(1.72\)
- 4.5_\(1.85\)
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.84% (0.06836) | 93.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.84% (0.06836) | 93.17th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.99% (0.01989) | 82.00th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.38% (0.04382) | 81.27th | v4 (v2025.03.14) |
| Jul 20, 2024 | 2.59% (0.02591) | 90.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.59% (0.02591) | 88.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.79% (0.03795) | 85.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.79% (0.03795) | 84.06th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.79% (0.03795) | 67.25th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02269) | 50.81th | v1 |
| Jan 6, 2022 | 2.27% (0.02269) | 50.31th | v1 |
| Sep 1, 2021 | 2.27% (0.02269) | 77.69th | v1 |
| Apr 14, 2021 | 2.27% (0.02269) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/95787 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037698 vdb-entryx_refsource_SECTRACK
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-telepresence x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/95787 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037698 | vdb-entryx_refsource_SECTRACK | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170125-telepresence | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.